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Finding the Fourth Proportional to 568,140.90, 783,753.58 and 371,791.14

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Solution

The fourth proportional to 568,140.90, 783,753.58 and 371,791.14 is: 512,887.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,140.90 : 783,753.58 = 371,791.14 : x
  2. Step 2: Convert to fraction form
    568,140.90/783,753.58 = 371,791.14/x
  3. Step 3: Cross multiply
    568,140.90x = 783,753.58 × 371,791.14
  4. Step 4: Simplify right side
    568,140.90x = 291,392,631,209.56
  5. Step 5: Solve for x
    x = 291,392,631,209.56/568,140.90
  6. Step 6: Final answer
    x = 512,887.97

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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.