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Finding the Fourth Proportional to 1,072.17, 1,479.47 and 600.03

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Solution

The fourth proportional to 1,072.17, 1,479.47 and 600.03 is: 827.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072.17 : 1,479.47 = 600.03 : x
  2. Step 2: Convert to fraction form
    1,072.17/1,479.47 = 600.03/x
  3. Step 3: Cross multiply
    1,072.17x = 1,479.47 × 600.03
  4. Step 4: Simplify right side
    1,072.17x = 887,723.38
  5. Step 5: Solve for x
    x = 887,723.38/1,072.17
  6. Step 6: Final answer
    x = 827.97

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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.