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Finding the Fourth Proportional to 466,832.80, 699,327.60 and 279,287.20

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Solution

The fourth proportional to 466,832.80, 699,327.60 and 279,287.20 is: 418,379.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,832.80 : 699,327.60 = 279,287.20 : x
  2. Step 2: Convert to fraction form
    466,832.80/699,327.60 = 279,287.20/x
  3. Step 3: Cross multiply
    466,832.80x = 699,327.60 × 279,287.20
  4. Step 4: Simplify right side
    466,832.80x = 195,313,247,286.72
  5. Step 5: Solve for x
    x = 195,313,247,286.72/466,832.80
  6. Step 6: Final answer
    x = 418,379.44

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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.