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Finding the Fourth Proportional to 619,007.38, 853,915.80 and 404,273.14

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Solution

The fourth proportional to 619,007.38, 853,915.80 and 404,273.14 is: 557,691.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,007.38 : 853,915.80 = 404,273.14 : x
  2. Step 2: Convert to fraction form
    619,007.38/853,915.80 = 404,273.14/x
  3. Step 3: Cross multiply
    619,007.38x = 853,915.80 × 404,273.14
  4. Step 4: Simplify right side
    619,007.38x = 345,215,222,535.07
  5. Step 5: Solve for x
    x = 345,215,222,535.07/619,007.38
  6. Step 6: Final answer
    x = 557,691.61

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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.