When approaching an intersection of a through street that ends at the intersection do yu first you must stop and then yield the right-of-way to the vehicles on the through street.?

Yes, when approaching an intersection where a through street ends, you must first stop at the designated stop line or intersection. After stopping, you should yield the right-of-way to any vehicles traveling on the through street. This ensures safety and proper traffic flow. Always be vigilant for pedestrians and other road users as well.