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Finding the Fourth Proportional to 585,215.70, 878,115.15 and 332,690.10

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Solution

The fourth proportional to 585,215.70, 878,115.15 and 332,690.10 is: 499,200.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,215.70 : 878,115.15 = 332,690.10 : x
  2. Step 2: Convert to fraction form
    585,215.70/878,115.15 = 332,690.10/x
  3. Step 3: Cross multiply
    585,215.70x = 878,115.15 × 332,690.10
  4. Step 4: Simplify right side
    585,215.70x = 292,140,217,065.02
  5. Step 5: Solve for x
    x = 292,140,217,065.02/585,215.70
  6. Step 6: Final answer
    x = 499,200.92

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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.