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Finding the Fourth Proportional to 2,694.60, 4,042.19 and 746.81

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Solution

The fourth proportional to 2,694.60, 4,042.19 and 746.81 is: 1,120.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,694.60 : 4,042.19 = 746.81 : x
  2. Step 2: Convert to fraction form
    2,694.60/4,042.19 = 746.81/x
  3. Step 3: Cross multiply
    2,694.60x = 4,042.19 × 746.81
  4. Step 4: Simplify right side
    2,694.60x = 3,018,734.07
  5. Step 5: Solve for x
    x = 3,018,734.07/2,694.60
  6. Step 6: Final answer
    x = 1,120.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.