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Finding the Fourth Proportional to 497,632.70, 744,861.45 and 392,656.70

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Solution

The fourth proportional to 497,632.70, 744,861.45 and 392,656.70 is: 587,732.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,632.70 : 744,861.45 = 392,656.70 : x
  2. Step 2: Convert to fraction form
    497,632.70/744,861.45 = 392,656.70/x
  3. Step 3: Cross multiply
    497,632.70x = 744,861.45 × 392,656.70
  4. Step 4: Simplify right side
    497,632.70x = 292,474,838,914.22
  5. Step 5: Solve for x
    x = 292,474,838,914.22/497,632.70
  6. Step 6: Final answer
    x = 587,732.36

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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.