Step 1 :Translate and solve: 72 greater than r is less than -432. This can be written as 72 + r < -432.
Step 2 :Subtract 72 from both sides of the inequality to isolate r. This gives r < -504.
Step 3 :The inequality r < -504 means that all values of r that are less than -504 satisfy the inequality.
Step 4 :In interval notation, this is written as (-∞, -504).
Step 5 :Final Answer: \(\boxed{(-\infty, -504)}\)