Home / 526,721.87-726,873.85-285,008.73

Finding the Fourth Proportional to 526,721.87, 726,873.85 and 285,008.73

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Solution

The fourth proportional to 526,721.87, 726,873.85 and 285,008.73 is: 393,310.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,721.87 : 726,873.85 = 285,008.73 : x
  2. Step 2: Convert to fraction form
    526,721.87/726,873.85 = 285,008.73/x
  3. Step 3: Cross multiply
    526,721.87x = 726,873.85 × 285,008.73
  4. Step 4: Simplify right side
    526,721.87x = 207,165,390,489.19
  5. Step 5: Solve for x
    x = 207,165,390,489.19/526,721.87
  6. Step 6: Final answer
    x = 393,310.78

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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.