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Finding the Fourth Proportional to 996.39, 1,375.65 and 733.95

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Solution

The fourth proportional to 996.39, 1,375.65 and 733.95 is: 1,013.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    996.39 : 1,375.65 = 733.95 : x
  2. Step 2: Convert to fraction form
    996.39/1,375.65 = 733.95/x
  3. Step 3: Cross multiply
    996.39x = 1,375.65 × 733.95
  4. Step 4: Simplify right side
    996.39x = 1,009,658.32
  5. Step 5: Solve for x
    x = 1,009,658.32/996.39
  6. Step 6: Final answer
    x = 1,013.32

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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.