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Finding the Fourth Proportional to 576,248.72, 864,151.47 and 398,215.98

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Solution

The fourth proportional to 576,248.72, 864,151.47 and 398,215.98 is: 597,170.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,248.72 : 864,151.47 = 398,215.98 : x
  2. Step 2: Convert to fraction form
    576,248.72/864,151.47 = 398,215.98/x
  3. Step 3: Cross multiply
    576,248.72x = 864,151.47 × 398,215.98
  4. Step 4: Simplify right side
    576,248.72x = 344,118,924,494.49
  5. Step 5: Solve for x
    x = 344,118,924,494.49/576,248.72
  6. Step 6: Final answer
    x = 597,170.83

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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.