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Finding the Fourth Proportional to 655,343.09, 981,755.24 and 401,884.49

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Solution

The fourth proportional to 655,343.09, 981,755.24 and 401,884.49 is: 602,054.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,343.09 : 981,755.24 = 401,884.49 : x
  2. Step 2: Convert to fraction form
    655,343.09/981,755.24 = 401,884.49/x
  3. Step 3: Cross multiply
    655,343.09x = 981,755.24 × 401,884.49
  4. Step 4: Simplify right side
    655,343.09x = 394,552,198,854.82
  5. Step 5: Solve for x
    x = 394,552,198,854.82/655,343.09
  6. Step 6: Final answer
    x = 602,054.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.