A helium balloon escapes a child at sea level at 30 ° C and a pressure of 1.01 bar. It reaches an altitude of 3000 m, where the temperature is 5 ° C and the pressure is 0.66 bar. What is the ratio of the volumes of the balloon at sea level to that at an altitude of 3000 m? Record the result to 3 decimal places. The general gas constant is 
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