Congruence and Similarity - Map Scales

Three landmarks—the Burj Khalifa, the Merdeka \(118\), and the Lotte World Tower—are being compared. The actual height of the tallest, Burj Khalifa, is \(828\) m. On a souvenir drawing, it is \(4.14\) cm tall.

1. Find the scale of the drawing in the form \(1:n\).
2. If the Lotte World Tower is \(541.3\) m tall, find its height on the same drawing in cm.
3. If the Merdeka \(118\) is \(3.16\) cm on this drawing, find its height on a professional blueprint with a scale of \(1:50000\).