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Finding the Fourth Proportional to 494,372.34, 681,573.96 and 392,735.16

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Solution

The fourth proportional to 494,372.34, 681,573.96 and 392,735.16 is: 541,450.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,372.34 : 681,573.96 = 392,735.16 : x
  2. Step 2: Convert to fraction form
    494,372.34/681,573.96 = 392,735.16/x
  3. Step 3: Cross multiply
    494,372.34x = 681,573.96 × 392,735.16
  4. Step 4: Simplify right side
    494,372.34x = 267,678,058,232.43
  5. Step 5: Solve for x
    x = 267,678,058,232.43/494,372.34
  6. Step 6: Final answer
    x = 541,450.31

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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.