I want to change the plot legend in each panel while mapping a plot command. e.g., in the example below

ListLinePlot[#,
   PlotLegends -> 
    Placed[{"48.5 m", "105.5 m", "409.5 m", "508.0 m", "1004.0 m"}, 
     Right]
   ] & /@ RandomReal[10, {5, 500}]

I get

While I want the legends to be 48.5 m, 105.5 m, ....