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Finding the Fourth Proportional to 486,476.50, 730,046.92 and 170,933.44

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Solution

The fourth proportional to 486,476.50, 730,046.92 and 170,933.44 is: 256,516.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,476.50 : 730,046.92 = 170,933.44 : x
  2. Step 2: Convert to fraction form
    486,476.50/730,046.92 = 170,933.44/x
  3. Step 3: Cross multiply
    486,476.50x = 730,046.92 × 170,933.44
  4. Step 4: Simplify right side
    486,476.50x = 124,789,431,397.01
  5. Step 5: Solve for x
    x = 124,789,431,397.01/486,476.50
  6. Step 6: Final answer
    x = 256,516.87

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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.