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Finding the Fourth Proportional to 568,456.03, 784,468.56 and 313,806.61

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Solution

The fourth proportional to 568,456.03, 784,468.56 and 313,806.61 is: 433,052.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,456.03 : 784,468.56 = 313,806.61 : x
  2. Step 2: Convert to fraction form
    568,456.03/784,468.56 = 313,806.61/x
  3. Step 3: Cross multiply
    568,456.03x = 784,468.56 × 313,806.61
  4. Step 4: Simplify right side
    568,456.03x = 246,171,419,465.18
  5. Step 5: Solve for x
    x = 246,171,419,465.18/568,456.03
  6. Step 6: Final answer
    x = 433,052.70

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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.