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Finding the Fourth Proportional to 418,252.98, 577,187.88 and 227,266.32

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Solution

The fourth proportional to 418,252.98, 577,187.88 and 227,266.32 is: 313,626.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,252.98 : 577,187.88 = 227,266.32 : x
  2. Step 2: Convert to fraction form
    418,252.98/577,187.88 = 227,266.32/x
  3. Step 3: Cross multiply
    418,252.98x = 577,187.88 × 227,266.32
  4. Step 4: Simplify right side
    418,252.98x = 131,175,365,436.20
  5. Step 5: Solve for x
    x = 131,175,365,436.20/418,252.98
  6. Step 6: Final answer
    x = 313,626.85

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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.