A total of 4 members of Xiao Ming's family took the train to travel, each ticket cost 215 yuan, and they also took the train when they came back. How much did they spend on the train for this trip?
小明家共4人乘火车去旅游，每张要215元，回来还乘火车，这次旅游买火车费一共花了多少元？
<gadget id="calculator">4 * 215 * 2</gadget>
<output>1_720</output>

<result>1_720</result>