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Finding the Fourth Proportional to 2,409.97, 3,325.60 and 1,361.97

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Solution

The fourth proportional to 2,409.97, 3,325.60 and 1,361.97 is: 1,879.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,409.97 : 3,325.60 = 1,361.97 : x
  2. Step 2: Convert to fraction form
    2,409.97/3,325.60 = 1,361.97/x
  3. Step 3: Cross multiply
    2,409.97x = 3,325.60 × 1,361.97
  4. Step 4: Simplify right side
    2,409.97x = 4,529,367.43
  5. Step 5: Solve for x
    x = 4,529,367.43/2,409.97
  6. Step 6: Final answer
    x = 1,879.43

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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.