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Finding the Fourth Proportional to 744.12, 1,024.97 and 701.33

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Solution

The fourth proportional to 744.12, 1,024.97 and 701.33 is: 966.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    744.12 : 1,024.97 = 701.33 : x
  2. Step 2: Convert to fraction form
    744.12/1,024.97 = 701.33/x
  3. Step 3: Cross multiply
    744.12x = 1,024.97 × 701.33
  4. Step 4: Simplify right side
    744.12x = 718,833.58
  5. Step 5: Solve for x
    x = 718,833.58/744.12
  6. Step 6: Final answer
    x = 966.02

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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.