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Finding the Fourth Proportional to 1,100.44, 1,518.04 and 746.38

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Solution

The fourth proportional to 1,100.44, 1,518.04 and 746.38 is: 1,029.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100.44 : 1,518.04 = 746.38 : x
  2. Step 2: Convert to fraction form
    1,100.44/1,518.04 = 746.38/x
  3. Step 3: Cross multiply
    1,100.44x = 1,518.04 × 746.38
  4. Step 4: Simplify right side
    1,100.44x = 1,133,034.70
  5. Step 5: Solve for x
    x = 1,133,034.70/1,100.44
  6. Step 6: Final answer
    x = 1,029.62

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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.