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Finding the Fourth Proportional to 568,346.38, 784,262.13 and 313,681.15

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Solution

The fourth proportional to 568,346.38, 784,262.13 and 313,681.15 is: 432,849.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,346.38 : 784,262.13 = 313,681.15 : x
  2. Step 2: Convert to fraction form
    568,346.38/784,262.13 = 313,681.15/x
  3. Step 3: Cross multiply
    568,346.38x = 784,262.13 × 313,681.15
  4. Step 4: Simplify right side
    568,346.38x = 246,008,246,839.85
  5. Step 5: Solve for x
    x = 246,008,246,839.85/568,346.38
  6. Step 6: Final answer
    x = 432,849.15

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1.5x scale

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.