Most people believe that smoking is unhealthy. The table given is the result of a study of randomly selected deaths of men aged 45 to 64 years. The table contains the causes of death, along with whether the men were smokers or nonsmokers. Cancer Smoker 135 Nonsmoker 55 Total 190 Cause of Death Heart Disease 310 155 465 Other 205 140 345 Total 650 350 1000 What proportion of the individuals that died from heart disease were smokers? Give your answer to three decimal places.

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