Using the place value chart, arrange the following numbers in ascending order: 1. 517203, 197003, 207413, 207917, 397629 2. 61103, 55503, 404203, 303903 3. 566111, 512330, 553261, 510231

The numbers are $517203, 197003, 207413, 207917, 397629$.
Comparing the numbers by their place values, we get:

$$197003 < 207413 < 207917 < 397629 < 517203$$

The ascending order is:
$\boxed{\text{197003, 207413, 207917, 397629, 517203}}$

The numbers are $611103, 505503, 404203, 303903$.
Comparing the numbers by their place values, we get:

$$303903 < 404203 < 505503 < 611103$$

The ascending order is:
$\boxed{\text{303903, 404203, 505503, 611103}}$

The numbers are $566111, 512330, 553261, 510231$.
Comparing the numbers by their place values, we get:

$$510231 < 512330 < 553261 < 566111$$

The ascending order is:
$\boxed{\text{510231, 512330, 553261, 566111}}$