628,125,t,5,1 The value of t in the pattern above is

628,125 - 628,125 = 0
125 - 5 = 120
5 - 1 = 4

This doesn't reveal a simple arithmetic or geometric progression.

Let's consider the possibility of a pattern involving powers or multiplication.
If we look at the numbers 625, 125, 5, 1, we can see a pattern related to powers of 5.
625 = 5⁴
125 = 5³
5 = 5¹
1 = 5⁰

The exponents are 4, 3, 1, 0. This sequence of exponents is not immediately obvious.

The sequence is 628,125, t, 5, 1.
If we assume the pattern is related to powers of 5, let's consider the numbers 625, 125, 5, 1.
625 = 5⁴
125 = 5³
5 = 5¹
1 = 5⁰

The number 628,125 is very close to 625. It's possible there's a typo or a slight variation. However, if we strictly follow the powers of 5, the sequence of exponents would be 4, 3, ?, 1, 0.

For the exponents to follow a logical progression, the missing exponent between 3 and 1 would be 2.
So, the exponents would be 4, 3, 2, 1, 0.

The term corresponding to an exponent of 2 would be 5².
5² = 25.

If the pattern is based on powers of 5, and the exponents are 4, 3, 2, 1, 0, then the sequence of terms would be 5⁴, 5³, 5², 5¹, 5⁰, which is 625, 125, 25, 5, 1.
Comparing this to the given sequence 628,125, t, 5, 1, it's highly probable that the first term is a typo and should be 625, and t should be 25.

However, if we must use the given numbers, and assuming the pattern is exactly as presented:
628,125, t, 5, 1
Let's consider the possibility that the first number is not directly part of the power-of-5 sequence but is related.
If we assume the sequence is 625, 125, 25, 5, 1, then t = 25. The first number 628,125 is problematic.

Let's assume the pattern is a geometric progression where each term is multiplied by a common ratio.
125 / 628125 = 0.0002
5 / 125 = 0.04
1 / 5 = 0.2
The ratios are not constant.

Let's go back to the powers of 5, as it's the most consistent pattern for the latter part of the sequence.
If the sequence of terms is meant to be 5⁴, 5³, 5², 5¹, 5⁰, then the terms are 625, 125, 25, 5, 1.
Given the sequence: 628,125, t, 5, 1.
It is most likely that the first term is a typo and should be 625, and t is the term corresponding to 5².

Therefore, assuming the pattern is based on powers of 5, the value of t is 5².

5² = 25.

The value of t in the pattern is 25.