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Finding the Fourth Proportional to 392,677.41, 541,880.37 and 239,971.14

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Solution

The fourth proportional to 392,677.41, 541,880.37 and 239,971.14 is: 331,151.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,677.41 : 541,880.37 = 239,971.14 : x
  2. Step 2: Convert to fraction form
    392,677.41/541,880.37 = 239,971.14/x
  3. Step 3: Cross multiply
    392,677.41x = 541,880.37 × 239,971.14
  4. Step 4: Simplify right side
    392,677.41x = 130,035,650,132.52
  5. Step 5: Solve for x
    x = 130,035,650,132.52/392,677.41
  6. Step 6: Final answer
    x = 331,151.34

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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.