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Finding the Fourth Proportional to 1,417.56, 1,956.14 and 796.44

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Solution

The fourth proportional to 1,417.56, 1,956.14 and 796.44 is: 1,099.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417.56 : 1,956.14 = 796.44 : x
  2. Step 2: Convert to fraction form
    1,417.56/1,956.14 = 796.44/x
  3. Step 3: Cross multiply
    1,417.56x = 1,956.14 × 796.44
  4. Step 4: Simplify right side
    1,417.56x = 1,557,948.14
  5. Step 5: Solve for x
    x = 1,557,948.14/1,417.56
  6. Step 6: Final answer
    x = 1,099.04

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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.