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Finding the Fourth Proportional to 1,163.84, 1,744.80 and 799.32

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Solution

The fourth proportional to 1,163.84, 1,744.80 and 799.32 is: 1,198.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,163.84 : 1,744.80 = 799.32 : x
  2. Step 2: Convert to fraction form
    1,163.84/1,744.80 = 799.32/x
  3. Step 3: Cross multiply
    1,163.84x = 1,744.80 × 799.32
  4. Step 4: Simplify right side
    1,163.84x = 1,394,653.54
  5. Step 5: Solve for x
    x = 1,394,653.54/1,163.84
  6. Step 6: Final answer
    x = 1,198.32

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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.