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Finding the Fourth Proportional to 568,338.38, 784,251.09 and 313,673.15

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Solution

The fourth proportional to 568,338.38, 784,251.09 and 313,673.15 is: 432,838.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,338.38 : 784,251.09 = 313,673.15 : x
  2. Step 2: Convert to fraction form
    568,338.38/784,251.09 = 313,673.15/x
  3. Step 3: Cross multiply
    568,338.38x = 784,251.09 × 313,673.15
  4. Step 4: Simplify right side
    568,338.38x = 245,998,509,791.23
  5. Step 5: Solve for x
    x = 245,998,509,791.23/568,338.38
  6. Step 6: Final answer
    x = 432,838.11

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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.