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Finding the Fourth Proportional to 552,216.44, 761,747.31 and 331,397.25

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Solution

The fourth proportional to 552,216.44, 761,747.31 and 331,397.25 is: 457,141.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,216.44 : 761,747.31 = 331,397.25 : x
  2. Step 2: Convert to fraction form
    552,216.44/761,747.31 = 331,397.25/x
  3. Step 3: Cross multiply
    552,216.44x = 761,747.31 × 331,397.25
  4. Step 4: Simplify right side
    552,216.44x = 252,440,963,728.90
  5. Step 5: Solve for x
    x = 252,440,963,728.90/552,216.44
  6. Step 6: Final answer
    x = 457,141.34

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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.