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Finding the Fourth Proportional to 479,962.44, 718,861.05 and 372,487.77

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Solution

The fourth proportional to 479,962.44, 718,861.05 and 372,487.77 is: 557,891.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,962.44 : 718,861.05 = 372,487.77 : x
  2. Step 2: Convert to fraction form
    479,962.44/718,861.05 = 372,487.77/x
  3. Step 3: Cross multiply
    479,962.44x = 718,861.05 × 372,487.77
  4. Step 4: Simplify right side
    479,962.44x = 267,766,949,454.36
  5. Step 5: Solve for x
    x = 267,766,949,454.36/479,962.44
  6. Step 6: Final answer
    x = 557,891.47

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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.