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Finding the Fourth Proportional to 568,393.53, 784,389.47 and 313,744.65

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Solution

The fourth proportional to 568,393.53, 784,389.47 and 313,744.65 is: 432,971.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,393.53 : 784,389.47 = 313,744.65 : x
  2. Step 2: Convert to fraction form
    568,393.53/784,389.47 = 313,744.65/x
  3. Step 3: Cross multiply
    568,393.53x = 784,389.47 × 313,744.65
  4. Step 4: Simplify right side
    568,393.53x = 246,097,996,983.47
  5. Step 5: Solve for x
    x = 246,097,996,983.47/568,393.53
  6. Step 6: Final answer
    x = 432,971.15

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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.