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Finding the Fourth Proportional to 568,500.57, 784,515.78 and 313,846.29

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Solution

The fourth proportional to 568,500.57, 784,515.78 and 313,846.29 is: 433,099.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,500.57 : 784,515.78 = 313,846.29 : x
  2. Step 2: Convert to fraction form
    568,500.57/784,515.78 = 313,846.29/x
  3. Step 3: Cross multiply
    568,500.57x = 784,515.78 × 313,846.29
  4. Step 4: Simplify right side
    568,500.57x = 246,217,366,999.46
  5. Step 5: Solve for x
    x = 246,217,366,999.46/568,500.57
  6. Step 6: Final answer
    x = 433,099.60

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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.