On a map with a scale of 1:30000000, the measured distance from Guangzhou to Beijing is 8.4cm. What is the actual distance from Guangzhou to Beijing?
在一幅比例尺是1：30000000的地图上，量得广州到北京的距离是8.4cm，广州到北京的实际距离是多少？
<gadget id="calculator">252_000_000 / 100_000</gadget>
<output>2_520</output>

<result>2_520</result>