On a map with a scale of 1:5,000,000, the length of the railway from Shijiazhuang to Beijing is measured to be 5.54 cm. How many kilometers is the actual length of the railway from Shijiazhuang to Beijing?
在一幅比例尺是1：5000000的地图上，量得石家庄到北京的铁路长5.54厘米．石家庄到北京的铁路实际长多少千米？
<gadget id="calculator">1 / 5_000_000</gadget>
<output>1/5_000_000 = around 0</output>

<gadget id="calculator">5.54 / (1/5_000_000) / 100_000</gadget>
<output>277</output>

<result>277</result>