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Finding the Fourth Proportional to 527,997.60, 791,704.80 and 172,828.80

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Solution

The fourth proportional to 527,997.60, 791,704.80 and 172,828.80 is: 259,147.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,997.60 : 791,704.80 = 172,828.80 : x
  2. Step 2: Convert to fraction form
    527,997.60/791,704.80 = 172,828.80/x
  3. Step 3: Cross multiply
    527,997.60x = 791,704.80 × 172,828.80
  4. Step 4: Simplify right side
    527,997.60x = 136,829,390,538.24
  5. Step 5: Solve for x
    x = 136,829,390,538.24/527,997.60
  6. Step 6: Final answer
    x = 259,147.75

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1.5x scale

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.