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Finding the Fourth Proportional to 484,523.40, 668,635.62 and 269,663.44

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Solution

The fourth proportional to 484,523.40, 668,635.62 and 269,663.44 is: 372,131.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,523.40 : 668,635.62 = 269,663.44 : x
  2. Step 2: Convert to fraction form
    484,523.40/668,635.62 = 269,663.44/x
  3. Step 3: Cross multiply
    484,523.40x = 668,635.62 × 269,663.44
  4. Step 4: Simplify right side
    484,523.40x = 180,306,581,395.73
  5. Step 5: Solve for x
    x = 180,306,581,395.73/484,523.40
  6. Step 6: Final answer
    x = 372,131.83

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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.