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Finding the Fourth Proportional to 527,543.36, 791,833.44 and 386,901.44

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Solution

The fourth proportional to 527,543.36, 791,833.44 and 386,901.44 is: 580,732.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,543.36 : 791,833.44 = 386,901.44 : x
  2. Step 2: Convert to fraction form
    527,543.36/791,833.44 = 386,901.44/x
  3. Step 3: Cross multiply
    527,543.36x = 791,833.44 × 386,901.44
  4. Step 4: Simplify right side
    527,543.36x = 306,361,498,176.15
  5. Step 5: Solve for x
    x = 306,361,498,176.15/527,543.36
  6. Step 6: Final answer
    x = 580,732.36

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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.