1 kilometer = 1000 meter
Then
4.5 kilometers = (1000/1) * 4.5 meters
= 1000 * 4.5 meters
= 1000 * (45/10) meters
= 100 * 45 meters
= 4500 meters
So there are 4500 meters in 4.5 kilometers
We already know that
1 feet = 12 inches
Then
5 feet = (12/1) * 5 inches
= 12 * 5 inches
= 60 inches
So there are 60 inches in 5 feet.
I hope the procedure of conversion is clear to you.