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Finding the Fourth Proportional to 527,452.87, 727,886.85 and 285,734.83

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Solution

The fourth proportional to 527,452.87, 727,886.85 and 285,734.83 is: 394,315.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,452.87 : 727,886.85 = 285,734.83 : x
  2. Step 2: Convert to fraction form
    527,452.87/727,886.85 = 285,734.83/x
  3. Step 3: Cross multiply
    527,452.87x = 727,886.85 × 285,734.83
  4. Step 4: Simplify right side
    527,452.87x = 207,982,625,343.99
  5. Step 5: Solve for x
    x = 207,982,625,343.99/527,452.87
  6. Step 6: Final answer
    x = 394,315.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.