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Finding the Fourth Proportional to 422,354.62, 582,703.68 and 240,935.68

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Solution

The fourth proportional to 422,354.62, 582,703.68 and 240,935.68 is: 332,408.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,354.62 : 582,703.68 = 240,935.68 : x
  2. Step 2: Convert to fraction form
    422,354.62/582,703.68 = 240,935.68/x
  3. Step 3: Cross multiply
    422,354.62x = 582,703.68 × 240,935.68
  4. Step 4: Simplify right side
    422,354.62x = 140,394,107,379.30
  5. Step 5: Solve for x
    x = 140,394,107,379.30/422,354.62
  6. Step 6: Final answer
    x = 332,408.13

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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.