A certain engineering team started erecting a railway bridge on April 1 this year. They were divided into two groups, A and B, to start construction at both ends. According to the calculation of 430 meters per month for group A and 410 meters per month for group B, it is expected to be completed in October this year. The month can be completed and opened to traffic. How long is this railway bridge in meters?
某工程队从今年四月一日起架设一座铁路桥，他们分甲、乙两组从两端同时开工，按照甲组每月架430米，乙组每月架410米计算，预计于今年十月能竣工通车．这座铁路桥全长多少米？
<gadget id="calculator">430 + 410</gadget>
<output>840</output>

<gadget id="calculator">840 * 7</gadget>
<output>5_880</output>

<result>5_880</result>