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Finding the Fourth Proportional to 568,373.87, 784,300.10 and 313,708.65

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Solution

The fourth proportional to 568,373.87, 784,300.10 and 313,708.65 is: 432,887.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,373.87 : 784,300.10 = 313,708.65 : x
  2. Step 2: Convert to fraction form
    568,373.87/784,300.10 = 313,708.65/x
  3. Step 3: Cross multiply
    568,373.87x = 784,300.10 × 313,708.65
  4. Step 4: Simplify right side
    568,373.87x = 246,041,723,997.32
  5. Step 5: Solve for x
    x = 246,041,723,997.32/568,373.87
  6. Step 6: Final answer
    x = 432,887.12

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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.