On a map with a scale of 1:2,000,000, the distance between Minhou County and Minqing County is measured to be 2.4 cm. What is the actual distance in kilometers between these two places?
在一幅比例尺是1：2000000的地图上，量得闽侯县城到闽清县城的距离是2.4厘米，这两地之间的实际距离是多少千米．
<gadget id="calculator">1 / 2_000_000</gadget>
<output>1/2_000_000 = around 0</output>

<gadget id="calculator">2.4 / (1/2_000_000) / 100_000</gadget>
<output>48</output>

<result>48</result>