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Finding the Fourth Proportional to 491,575.91, 736,612.65 and 331,058.25

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Solution

The fourth proportional to 491,575.91, 736,612.65 and 331,058.25 is: 496,081.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,575.91 : 736,612.65 = 331,058.25 : x
  2. Step 2: Convert to fraction form
    491,575.91/736,612.65 = 331,058.25/x
  3. Step 3: Cross multiply
    491,575.91x = 736,612.65 × 331,058.25
  4. Step 4: Simplify right side
    491,575.91x = 243,861,694,836.86
  5. Step 5: Solve for x
    x = 243,861,694,836.86/491,575.91
  6. Step 6: Final answer
    x = 496,081.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.