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Finding the Fourth Proportional to 451,672.20, 677,508.30 and 274,233.60

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Solution

The fourth proportional to 451,672.20, 677,508.30 and 274,233.60 is: 411,350.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,672.20 : 677,508.30 = 274,233.60 : x
  2. Step 2: Convert to fraction form
    451,672.20/677,508.30 = 274,233.60/x
  3. Step 3: Cross multiply
    451,672.20x = 677,508.30 × 274,233.60
  4. Step 4: Simplify right side
    451,672.20x = 185,795,540,138.88
  5. Step 5: Solve for x
    x = 185,795,540,138.88/451,672.20
  6. Step 6: Final answer
    x = 411,350.40

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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.