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Finding the Fourth Proportional to 274,331.79, 411,276.24 and 252,188.42

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Solution

The fourth proportional to 274,331.79, 411,276.24 and 252,188.42 is: 378,079.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,331.79 : 411,276.24 = 252,188.42 : x
  2. Step 2: Convert to fraction form
    274,331.79/411,276.24 = 252,188.42/x
  3. Step 3: Cross multiply
    274,331.79x = 411,276.24 × 252,188.42
  4. Step 4: Simplify right side
    274,331.79x = 103,719,103,092.76
  5. Step 5: Solve for x
    x = 103,719,103,092.76/274,331.79
  6. Step 6: Final answer
    x = 378,079.05

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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.