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Finding the Fourth Proportional to 747.74, 1,032.36 and 701.27

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Solution

The fourth proportional to 747.74, 1,032.36 and 701.27 is: 968.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    747.74 : 1,032.36 = 701.27 : x
  2. Step 2: Convert to fraction form
    747.74/1,032.36 = 701.27/x
  3. Step 3: Cross multiply
    747.74x = 1,032.36 × 701.27
  4. Step 4: Simplify right side
    747.74x = 723,957.94
  5. Step 5: Solve for x
    x = 723,957.94/747.74
  6. Step 6: Final answer
    x = 968.20

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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.