Home / 527,884.20-791,819.10-172,909.80

Finding the Fourth Proportional to 527,884.20, 791,819.10 and 172,909.80

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Solution

The fourth proportional to 527,884.20, 791,819.10 and 172,909.80 is: 259,362.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,884.20 : 791,819.10 = 172,909.80 : x
  2. Step 2: Convert to fraction form
    527,884.20/791,819.10 = 172,909.80/x
  3. Step 3: Cross multiply
    527,884.20x = 791,819.10 × 172,909.80
  4. Step 4: Simplify right side
    527,884.20x = 136,913,282,217.18
  5. Step 5: Solve for x
    x = 136,913,282,217.18/527,884.20
  6. Step 6: Final answer
    x = 259,362.34

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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.