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Finding the Fourth Proportional to 568,320.60, 784,226.61 and 313,655.39

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Solution

The fourth proportional to 568,320.60, 784,226.61 and 313,655.39 is: 432,813.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,320.60 : 784,226.61 = 313,655.39 : x
  2. Step 2: Convert to fraction form
    568,320.60/784,226.61 = 313,655.39/x
  3. Step 3: Cross multiply
    568,320.60x = 784,226.61 × 313,655.39
  4. Step 4: Simplify right side
    568,320.60x = 245,976,902,227.65
  5. Step 5: Solve for x
    x = 245,976,902,227.65/568,320.60
  6. Step 6: Final answer
    x = 432,813.63

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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.