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Finding the Fourth Proportional to 1,067.46, 1,473.27 and 625.62

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Solution

The fourth proportional to 1,067.46, 1,473.27 and 625.62 is: 863.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067.46 : 1,473.27 = 625.62 : x
  2. Step 2: Convert to fraction form
    1,067.46/1,473.27 = 625.62/x
  3. Step 3: Cross multiply
    1,067.46x = 1,473.27 × 625.62
  4. Step 4: Simplify right side
    1,067.46x = 921,707.18
  5. Step 5: Solve for x
    x = 921,707.18/1,067.46
  6. Step 6: Final answer
    x = 863.46

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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.