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Finding the Fourth Proportional to 627,861.68, 866,780.16 and 504,006.20

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Solution

The fourth proportional to 627,861.68, 866,780.16 and 504,006.20 is: 695,794.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,861.68 : 866,780.16 = 504,006.20 : x
  2. Step 2: Convert to fraction form
    627,861.68/866,780.16 = 504,006.20/x
  3. Step 3: Cross multiply
    627,861.68x = 866,780.16 × 504,006.20
  4. Step 4: Simplify right side
    627,861.68x = 436,862,574,676.99
  5. Step 5: Solve for x
    x = 436,862,574,676.99/627,861.68
  6. Step 6: Final answer
    x = 695,794.29

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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.