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Finding the Fourth Proportional to 1,744.33, 2,407.23 and 998.32

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Solution

The fourth proportional to 1,744.33, 2,407.23 and 998.32 is: 1,377.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,744.33 : 2,407.23 = 998.32 : x
  2. Step 2: Convert to fraction form
    1,744.33/2,407.23 = 998.32/x
  3. Step 3: Cross multiply
    1,744.33x = 2,407.23 × 998.32
  4. Step 4: Simplify right side
    1,744.33x = 2,403,185.85
  5. Step 5: Solve for x
    x = 2,403,185.85/1,744.33
  6. Step 6: Final answer
    x = 1,377.71

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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.