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Finding the Fourth Proportional to 655,214.26, 904,046.08 and 368,629.78

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Solution

The fourth proportional to 655,214.26, 904,046.08 and 368,629.78 is: 508,624.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,214.26 : 904,046.08 = 368,629.78 : x
  2. Step 2: Convert to fraction form
    655,214.26/904,046.08 = 368,629.78/x
  3. Step 3: Cross multiply
    655,214.26x = 904,046.08 × 368,629.78
  4. Step 4: Simplify right side
    655,214.26x = 333,258,304,398.57
  5. Step 5: Solve for x
    x = 333,258,304,398.57/655,214.26
  6. Step 6: Final answer
    x = 508,624.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.