The distance between Beijing and Tianjin is 120 kilometers. On a map with a scale of (1/4000000), what is the distance in centimeters between the two places?
北京到天津的距离为120千米，在比例尺为(1/4000000)的地图上，两地的距离是多少厘米？
<gadget id="calculator">1 / 4_000_000</gadget>
<output>1/4_000_000 = around 0</output>

<gadget id="calculator">120 * 100_000 * (1/4_000_000)</gadget>
<output>3</output>

<result>3</result>