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Finding the Fourth Proportional to 472,213.85, 708,529.46 and 247,520.56

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Solution

The fourth proportional to 472,213.85, 708,529.46 and 247,520.56 is: 371,390.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,213.85 : 708,529.46 = 247,520.56 : x
  2. Step 2: Convert to fraction form
    472,213.85/708,529.46 = 247,520.56/x
  3. Step 3: Cross multiply
    472,213.85x = 708,529.46 × 247,520.56
  4. Step 4: Simplify right side
    472,213.85x = 175,375,605,706.77
  5. Step 5: Solve for x
    x = 175,375,605,706.77/472,213.85
  6. Step 6: Final answer
    x = 371,390.22

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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.