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Finding the Fourth Proportional to 568,459.97, 784,469.94 and 313,805.69

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Solution

The fourth proportional to 568,459.97, 784,469.94 and 313,805.69 is: 433,049.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,459.97 : 784,469.94 = 313,805.69 : x
  2. Step 2: Convert to fraction form
    568,459.97/784,469.94 = 313,805.69/x
  3. Step 3: Cross multiply
    568,459.97x = 784,469.94 × 313,805.69
  4. Step 4: Simplify right side
    568,459.97x = 246,171,130,805.96
  5. Step 5: Solve for x
    x = 246,171,130,805.96/568,459.97
  6. Step 6: Final answer
    x = 433,049.19

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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.