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Finding the Fourth Proportional to 568,342.80, 784,309.28 and 313,693.98

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Solution

The fourth proportional to 568,342.80, 784,309.28 and 313,693.98 is: 432,895.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,342.80 : 784,309.28 = 313,693.98 : x
  2. Step 2: Convert to fraction form
    568,342.80/784,309.28 = 313,693.98/x
  3. Step 3: Cross multiply
    568,342.80x = 784,309.28 × 313,693.98
  4. Step 4: Simplify right side
    568,342.80x = 246,033,098,025.67
  5. Step 5: Solve for x
    x = 246,033,098,025.67/568,342.80
  6. Step 6: Final answer
    x = 432,895.60

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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.