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Finding the Fourth Proportional to 381,694.28, 568,357.67 and 368,055.32

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Solution

The fourth proportional to 381,694.28, 568,357.67 and 368,055.32 is: 548,048.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,694.28 : 568,357.67 = 368,055.32 : x
  2. Step 2: Convert to fraction form
    381,694.28/568,357.67 = 368,055.32/x
  3. Step 3: Cross multiply
    381,694.28x = 568,357.67 × 368,055.32
  4. Step 4: Simplify right side
    381,694.28x = 209,187,062,184.65
  5. Step 5: Solve for x
    x = 209,187,062,184.65/381,694.28
  6. Step 6: Final answer
    x = 548,048.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.