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Finding the Fourth Proportional to 1,067.24, 1,599.42 and 940.52

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Solution

The fourth proportional to 1,067.24, 1,599.42 and 940.52 is: 1,409.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067.24 : 1,599.42 = 940.52 : x
  2. Step 2: Convert to fraction form
    1,067.24/1,599.42 = 940.52/x
  3. Step 3: Cross multiply
    1,067.24x = 1,599.42 × 940.52
  4. Step 4: Simplify right side
    1,067.24x = 1,504,286.50
  5. Step 5: Solve for x
    x = 1,504,286.50/1,067.24
  6. Step 6: Final answer
    x = 1,409.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.