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Finding the Fourth Proportional to 486,577.72, 726,175.67 and 473,980.60

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Solution

The fourth proportional to 486,577.72, 726,175.67 and 473,980.60 is: 707,375.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,577.72 : 726,175.67 = 473,980.60 : x
  2. Step 2: Convert to fraction form
    486,577.72/726,175.67 = 473,980.60/x
  3. Step 3: Cross multiply
    486,577.72x = 726,175.67 × 473,980.60
  4. Step 4: Simplify right side
    486,577.72x = 344,193,179,772.00
  5. Step 5: Solve for x
    x = 344,193,179,772.00/486,577.72
  6. Step 6: Final answer
    x = 707,375.54

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.