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Finding the Fourth Proportional to 475,717.80, 656,490.24 and 260,861.52

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Solution

The fourth proportional to 475,717.80, 656,490.24 and 260,861.52 is: 359,988.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,717.80 : 656,490.24 = 260,861.52 : x
  2. Step 2: Convert to fraction form
    475,717.80/656,490.24 = 260,861.52/x
  3. Step 3: Cross multiply
    475,717.80x = 656,490.24 × 260,861.52
  4. Step 4: Simplify right side
    475,717.80x = 171,253,041,871.57
  5. Step 5: Solve for x
    x = 171,253,041,871.57/475,717.80
  6. Step 6: Final answer
    x = 359,988.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.