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Finding the Fourth Proportional to 1,361.97, 2,044.50 and 1,224.09

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Solution

The fourth proportional to 1,361.97, 2,044.50 and 1,224.09 is: 1,837.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361.97 : 2,044.50 = 1,224.09 : x
  2. Step 2: Convert to fraction form
    1,361.97/2,044.50 = 1,224.09/x
  3. Step 3: Cross multiply
    1,361.97x = 2,044.50 × 1,224.09
  4. Step 4: Simplify right side
    1,361.97x = 2,502,652.01
  5. Step 5: Solve for x
    x = 2,502,652.01/1,361.97
  6. Step 6: Final answer
    x = 1,837.52

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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.