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Finding the Fourth Proportional to 963.84, 1,444.32 and 791.73

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Solution

The fourth proportional to 963.84, 1,444.32 and 791.73 is: 1,186.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    963.84 : 1,444.32 = 791.73 : x
  2. Step 2: Convert to fraction form
    963.84/1,444.32 = 791.73/x
  3. Step 3: Cross multiply
    963.84x = 1,444.32 × 791.73
  4. Step 4: Simplify right side
    963.84x = 1,143,511.47
  5. Step 5: Solve for x
    x = 1,143,511.47/963.84
  6. Step 6: Final answer
    x = 1,186.41

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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.