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Finding the Fourth Proportional to 472,234.05, 708,560.46 and 247,540.86

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Solution

The fourth proportional to 472,234.05, 708,560.46 and 247,540.86 is: 371,421.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,234.05 : 708,560.46 = 247,540.86 : x
  2. Step 2: Convert to fraction form
    472,234.05/708,560.46 = 247,540.86/x
  3. Step 3: Cross multiply
    472,234.05x = 708,560.46 × 247,540.86
  4. Step 4: Simplify right side
    472,234.05x = 175,397,665,630.40
  5. Step 5: Solve for x
    x = 175,397,665,630.40/472,234.05
  6. Step 6: Final answer
    x = 371,421.05

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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.