Question

A temperature of 3225 °F will melt platinum. Gold melts at a temperature of 1947.974 °F.

Answer 1

Questions like this ("how much higher is x than y?") are answered by computing the ratio of the two quantities.

In fact, for example, the answer to "how much higher is 10 than 5?" is 2, because 10:5 = 2, and indeed 10 is twice as much as 5.

So, we have

$\dfrac{3225}{1947.974}\approx 1.65$

So, the melting temperature of platinum is about one time and a half higher than the melting temperature of gold.