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Finding the Fourth Proportional to 361,799.52, 542,648.98 and 253,400.56

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Solution

The fourth proportional to 361,799.52, 542,648.98 and 253,400.56 is: 380,065.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,799.52 : 542,648.98 = 253,400.56 : x
  2. Step 2: Convert to fraction form
    361,799.52/542,648.98 = 253,400.56/x
  3. Step 3: Cross multiply
    361,799.52x = 542,648.98 × 253,400.56
  4. Step 4: Simplify right side
    361,799.52x = 137,507,555,415.43
  5. Step 5: Solve for x
    x = 137,507,555,415.43/361,799.52
  6. Step 6: Final answer
    x = 380,065.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.