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Finding the Fourth Proportional to 678,163.17, 936,641.89 and 446,625.14

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Solution

The fourth proportional to 678,163.17, 936,641.89 and 446,625.14 is: 616,854.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,163.17 : 936,641.89 = 446,625.14 : x
  2. Step 2: Convert to fraction form
    678,163.17/936,641.89 = 446,625.14/x
  3. Step 3: Cross multiply
    678,163.17x = 936,641.89 × 446,625.14
  4. Step 4: Simplify right side
    678,163.17x = 418,327,815,251.12
  5. Step 5: Solve for x
    x = 418,327,815,251.12/678,163.17
  6. Step 6: Final answer
    x = 616,854.22

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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.