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Finding the Fourth Proportional to 400,366.62, 552,489.44 and 239,310.47

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Solution

The fourth proportional to 400,366.62, 552,489.44 and 239,310.47 is: 330,238.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,366.62 : 552,489.44 = 239,310.47 : x
  2. Step 2: Convert to fraction form
    400,366.62/552,489.44 = 239,310.47/x
  3. Step 3: Cross multiply
    400,366.62x = 552,489.44 × 239,310.47
  4. Step 4: Simplify right side
    400,366.62x = 132,216,503,597.44
  5. Step 5: Solve for x
    x = 132,216,503,597.44/400,366.62
  6. Step 6: Final answer
    x = 330,238.58

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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.