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Finding the Fourth Proportional to 447,578.88, 617,658.85 and 246,374.88

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Solution

The fourth proportional to 447,578.88, 617,658.85 and 246,374.88 is: 339,997.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,578.88 : 617,658.85 = 246,374.88 : x
  2. Step 2: Convert to fraction form
    447,578.88/617,658.85 = 246,374.88/x
  3. Step 3: Cross multiply
    447,578.88x = 617,658.85 × 246,374.88
  4. Step 4: Simplify right side
    447,578.88x = 152,175,625,049.69
  5. Step 5: Solve for x
    x = 152,175,625,049.69/447,578.88
  6. Step 6: Final answer
    x = 339,997.33

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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.