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Finding the Fourth Proportional to 1,408.44, 1,943.52 and 1,114.44

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Solution

The fourth proportional to 1,408.44, 1,943.52 and 1,114.44 is: 1,537.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408.44 : 1,943.52 = 1,114.44 : x
  2. Step 2: Convert to fraction form
    1,408.44/1,943.52 = 1,114.44/x
  3. Step 3: Cross multiply
    1,408.44x = 1,943.52 × 1,114.44
  4. Step 4: Simplify right side
    1,408.44x = 2,165,936.43
  5. Step 5: Solve for x
    x = 2,165,936.43/1,408.44
  6. Step 6: Final answer
    x = 1,537.83

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1.5x scale

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.