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Finding the Fourth Proportional to 568,788.72, 784,896.12 and 327,032.88

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Solution

The fourth proportional to 568,788.72, 784,896.12 and 327,032.88 is: 451,286.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,788.72 : 784,896.12 = 327,032.88 : x
  2. Step 2: Convert to fraction form
    568,788.72/784,896.12 = 327,032.88/x
  3. Step 3: Cross multiply
    568,788.72x = 784,896.12 × 327,032.88
  4. Step 4: Simplify right side
    568,788.72x = 256,686,838,624.43
  5. Step 5: Solve for x
    x = 256,686,838,624.43/568,788.72
  6. Step 6: Final answer
    x = 451,286.80

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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.