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Finding the Fourth Proportional to 347,635.20, 521,841.60 and 324,793.20

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Solution

The fourth proportional to 347,635.20, 521,841.60 and 324,793.20 is: 487,553.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,635.20 : 521,841.60 = 324,793.20 : x
  2. Step 2: Convert to fraction form
    347,635.20/521,841.60 = 324,793.20/x
  3. Step 3: Cross multiply
    347,635.20x = 521,841.60 × 324,793.20
  4. Step 4: Simplify right side
    347,635.20x = 169,490,603,157.12
  5. Step 5: Solve for x
    x = 169,490,603,157.12/347,635.20
  6. Step 6: Final answer
    x = 487,553.05

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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.