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Finding the Fourth Proportional to 568,314.44, 784,270.05 and 313,665.65

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Solution

The fourth proportional to 568,314.44, 784,270.05 and 313,665.65 is: 432,856.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,314.44 : 784,270.05 = 313,665.65 : x
  2. Step 2: Convert to fraction form
    568,314.44/784,270.05 = 313,665.65/x
  3. Step 3: Cross multiply
    568,314.44x = 784,270.05 × 313,665.65
  4. Step 4: Simplify right side
    568,314.44x = 245,998,575,008.78
  5. Step 5: Solve for x
    x = 245,998,575,008.78/568,314.44
  6. Step 6: Final answer
    x = 432,856.46

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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.