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Finding the Fourth Proportional to 527,568.63, 791,426.76 and 172,511.88

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Solution

The fourth proportional to 527,568.63, 791,426.76 and 172,511.88 is: 258,791.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,568.63 : 791,426.76 = 172,511.88 : x
  2. Step 2: Convert to fraction form
    527,568.63/791,426.76 = 172,511.88/x
  3. Step 3: Cross multiply
    527,568.63x = 791,426.76 × 172,511.88
  4. Step 4: Simplify right side
    527,568.63x = 136,530,518,249.91
  5. Step 5: Solve for x
    x = 136,530,518,249.91/527,568.63
  6. Step 6: Final answer
    x = 258,791.96

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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.