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Finding the Fourth Proportional to 1,320.98, 1,822.96 and 731.54

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Solution

The fourth proportional to 1,320.98, 1,822.96 and 731.54 is: 1,009.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320.98 : 1,822.96 = 731.54 : x
  2. Step 2: Convert to fraction form
    1,320.98/1,822.96 = 731.54/x
  3. Step 3: Cross multiply
    1,320.98x = 1,822.96 × 731.54
  4. Step 4: Simplify right side
    1,320.98x = 1,333,568.16
  5. Step 5: Solve for x
    x = 1,333,568.16/1,320.98
  6. Step 6: Final answer
    x = 1,009.53

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.