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Finding the Fourth Proportional to 2,361.44, 3,544.40 and 1,208

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Solution

The fourth proportional to 2,361.44, 3,544.40 and 1,208 is: 1,813.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,361.44 : 3,544.40 = 1,208 : x
  2. Step 2: Convert to fraction form
    2,361.44/3,544.40 = 1,208/x
  3. Step 3: Cross multiply
    2,361.44x = 3,544.40 × 1,208
  4. Step 4: Simplify right side
    2,361.44x = 4,281,635.20
  5. Step 5: Solve for x
    x = 4,281,635.20/2,361.44
  6. Step 6: Final answer
    x = 1,813.15

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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.