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Finding the Fourth Proportional to 1,083.48, 1,494.60 and 733.56

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Solution

The fourth proportional to 1,083.48, 1,494.60 and 733.56 is: 1,011.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,083.48 : 1,494.60 = 733.56 : x
  2. Step 2: Convert to fraction form
    1,083.48/1,494.60 = 733.56/x
  3. Step 3: Cross multiply
    1,083.48x = 1,494.60 × 733.56
  4. Step 4: Simplify right side
    1,083.48x = 1,096,378.78
  5. Step 5: Solve for x
    x = 1,096,378.78/1,083.48
  6. Step 6: Final answer
    x = 1,011.90

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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.