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Finding the Fourth Proportional to 418,266.69, 625,757.69 and 322,775.43

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Solution

The fourth proportional to 418,266.69, 625,757.69 and 322,775.43 is: 482,895.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,266.69 : 625,757.69 = 322,775.43 : x
  2. Step 2: Convert to fraction form
    418,266.69/625,757.69 = 322,775.43/x
  3. Step 3: Cross multiply
    418,266.69x = 625,757.69 × 322,775.43
  4. Step 4: Simplify right side
    418,266.69x = 201,979,205,851.68
  5. Step 5: Solve for x
    x = 201,979,205,851.68/418,266.69
  6. Step 6: Final answer
    x = 482,895.75

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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.