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Finding the Fourth Proportional to 996.33, 1,375.04 and 603.28

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Solution

The fourth proportional to 996.33, 1,375.04 and 603.28 is: 832.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    996.33 : 1,375.04 = 603.28 : x
  2. Step 2: Convert to fraction form
    996.33/1,375.04 = 603.28/x
  3. Step 3: Cross multiply
    996.33x = 1,375.04 × 603.28
  4. Step 4: Simplify right side
    996.33x = 829,537.36
  5. Step 5: Solve for x
    x = 829,537.36/996.33
  6. Step 6: Final answer
    x = 832.59

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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.