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Finding the Fourth Proportional to 539,575.86, 744,616.46 and 297,857.86

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Solution

The fourth proportional to 539,575.86, 744,616.46 and 297,857.86 is: 411,044.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,575.86 : 744,616.46 = 297,857.86 : x
  2. Step 2: Convert to fraction form
    539,575.86/744,616.46 = 297,857.86/x
  3. Step 3: Cross multiply
    539,575.86x = 744,616.46 × 297,857.86
  4. Step 4: Simplify right side
    539,575.86x = 221,789,864,179.48
  5. Step 5: Solve for x
    x = 221,789,864,179.48/539,575.86
  6. Step 6: Final answer
    x = 411,044.82

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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.