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Finding the Fourth Proportional to 982.04, 1,355.25 and 734.18

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Solution

The fourth proportional to 982.04, 1,355.25 and 734.18 is: 1,013.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    982.04 : 1,355.25 = 734.18 : x
  2. Step 2: Convert to fraction form
    982.04/1,355.25 = 734.18/x
  3. Step 3: Cross multiply
    982.04x = 1,355.25 × 734.18
  4. Step 4: Simplify right side
    982.04x = 994,997.45
  5. Step 5: Solve for x
    x = 994,997.45/982.04
  6. Step 6: Final answer
    x = 1,013.19

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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.