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Finding the Fourth Proportional to 392,588.96, 541,228.56 and 265,062.56

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Solution

The fourth proportional to 392,588.96, 541,228.56 and 265,062.56 is: 365,418.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,588.96 : 541,228.56 = 265,062.56 : x
  2. Step 2: Convert to fraction form
    392,588.96/541,228.56 = 265,062.56/x
  3. Step 3: Cross multiply
    392,588.96x = 541,228.56 × 265,062.56
  4. Step 4: Simplify right side
    392,588.96x = 143,459,427,658.71
  5. Step 5: Solve for x
    x = 143,459,427,658.71/392,588.96
  6. Step 6: Final answer
    x = 365,418.90

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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.