Find r for the geometric series s5=244 a1=4 and a5=324

Heres how to solve it
an infinite  geometric series  is the sum of an infinite  geometric sequence. this series would have no last term. the general form of the infinite geometric series is  a1+a1r+a1r2+a1r3++a1r+a1r2+a1r3+  , where  a1a1  is the first term and  rr   is the common ratio

If you make it a little more clear i can answer it

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