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Finding the Fourth Proportional to 568,339.38, 784,252.47 and 313,674.15

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Solution

The fourth proportional to 568,339.38, 784,252.47 and 313,674.15 is: 432,839.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,339.38 : 784,252.47 = 313,674.15 : x
  2. Step 2: Convert to fraction form
    568,339.38/784,252.47 = 313,674.15/x
  3. Step 3: Cross multiply
    568,339.38x = 784,252.47 × 313,674.15
  4. Step 4: Simplify right side
    568,339.38x = 245,999,726,912.65
  5. Step 5: Solve for x
    x = 245,999,726,912.65/568,339.38
  6. Step 6: Final answer
    x = 432,839.49

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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.