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Finding the Fourth Proportional to 982.24, 1,354.66 and 701.96

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Solution

The fourth proportional to 982.24, 1,354.66 and 701.96 is: 968.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    982.24 : 1,354.66 = 701.96 : x
  2. Step 2: Convert to fraction form
    982.24/1,354.66 = 701.96/x
  3. Step 3: Cross multiply
    982.24x = 1,354.66 × 701.96
  4. Step 4: Simplify right side
    982.24x = 950,917.13
  5. Step 5: Solve for x
    x = 950,917.13/982.24
  6. Step 6: Final answer
    x = 968.11

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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.