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Finding the Fourth Proportional to 527,497.68, 791,343.72 and 172,530.57

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Solution

The fourth proportional to 527,497.68, 791,343.72 and 172,530.57 is: 258,827.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,497.68 : 791,343.72 = 172,530.57 : x
  2. Step 2: Convert to fraction form
    527,497.68/791,343.72 = 172,530.57/x
  3. Step 3: Cross multiply
    527,497.68x = 791,343.72 × 172,530.57
  4. Step 4: Simplify right side
    527,497.68x = 136,530,983,077.52
  5. Step 5: Solve for x
    x = 136,530,983,077.52/527,497.68
  6. Step 6: Final answer
    x = 258,827.65

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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.