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Finding the Fourth Proportional to 392,371.44, 541,635.30 and 265,219.26

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Solution

The fourth proportional to 392,371.44, 541,635.30 and 265,219.26 is: 366,112.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,371.44 : 541,635.30 = 265,219.26 : x
  2. Step 2: Convert to fraction form
    392,371.44/541,635.30 = 265,219.26/x
  3. Step 3: Cross multiply
    392,371.44x = 541,635.30 × 265,219.26
  4. Step 4: Simplify right side
    392,371.44x = 143,652,113,455.88
  5. Step 5: Solve for x
    x = 143,652,113,455.88/392,371.44
  6. Step 6: Final answer
    x = 366,112.56

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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.