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Finding the Fourth Proportional to 1,033.84, 1,549.50 and 791.38

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Solution

The fourth proportional to 1,033.84, 1,549.50 and 791.38 is: 1,186.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,033.84 : 1,549.50 = 791.38 : x
  2. Step 2: Convert to fraction form
    1,033.84/1,549.50 = 791.38/x
  3. Step 3: Cross multiply
    1,033.84x = 1,549.50 × 791.38
  4. Step 4: Simplify right side
    1,033.84x = 1,226,243.31
  5. Step 5: Solve for x
    x = 1,226,243.31/1,033.84
  6. Step 6: Final answer
    x = 1,186.11

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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.