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Finding the Fourth Proportional to 568,369.97, 784,350.63 and 313,721.22

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Solution

The fourth proportional to 568,369.97, 784,350.63 and 313,721.22 is: 432,935.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,369.97 : 784,350.63 = 313,721.22 : x
  2. Step 2: Convert to fraction form
    568,369.97/784,350.63 = 313,721.22/x
  3. Step 3: Cross multiply
    568,369.97x = 784,350.63 × 313,721.22
  4. Step 4: Simplify right side
    568,369.97x = 246,067,436,551.37
  5. Step 5: Solve for x
    x = 246,067,436,551.37/568,369.97
  6. Step 6: Final answer
    x = 432,935.32

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Double scale
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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.