Prove that racRVRP = racVUPQ using the similarity riangle RVU ||| riangle RPQ.

From question 2.2.1, we proved that $\triangle RVU ||| \triangle RPQ$.

When two triangles are similar, the ratio of their corresponding sides is equal.
For $\triangle RVU ||| \triangle RPQ$:

The question asks to prove $\frac{RV}{RP} = \frac{VU}{PQ}$. This is directly obtained from the ratios of corresponding sides.

Therefore, $\boxed{\frac{RV}{RP} = \frac{VU}{PQ}}$.