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Finding the Fourth Proportional to 568,404.60, 784,396.69 and 313,753.96

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Solution

The fourth proportional to 568,404.60, 784,396.69 and 313,753.96 is: 432,979.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,404.60 : 784,396.69 = 313,753.96 : x
  2. Step 2: Convert to fraction form
    568,404.60/784,396.69 = 313,753.96/x
  3. Step 3: Cross multiply
    568,404.60x = 784,396.69 × 313,753.96
  4. Step 4: Simplify right side
    568,404.60x = 246,107,567,698.39
  5. Step 5: Solve for x
    x = 246,107,567,698.39/568,404.60
  6. Step 6: Final answer
    x = 432,979.55

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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.