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Finding the Fourth Proportional to 1,167.97, 1,752.56 and 551.36

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Solution

The fourth proportional to 1,167.97, 1,752.56 and 551.36 is: 827.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167.97 : 1,752.56 = 551.36 : x
  2. Step 2: Convert to fraction form
    1,167.97/1,752.56 = 551.36/x
  3. Step 3: Cross multiply
    1,167.97x = 1,752.56 × 551.36
  4. Step 4: Simplify right side
    1,167.97x = 966,291.48
  5. Step 5: Solve for x
    x = 966,291.48/1,167.97
  6. Step 6: Final answer
    x = 827.33

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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.