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Finding the Fourth Proportional to 1,202.22, 1,659.09 and 704.94

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Solution

The fourth proportional to 1,202.22, 1,659.09 and 704.94 is: 972.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202.22 : 1,659.09 = 704.94 : x
  2. Step 2: Convert to fraction form
    1,202.22/1,659.09 = 704.94/x
  3. Step 3: Cross multiply
    1,202.22x = 1,659.09 × 704.94
  4. Step 4: Simplify right side
    1,202.22x = 1,169,558.90
  5. Step 5: Solve for x
    x = 1,169,558.90/1,202.22
  6. Step 6: Final answer
    x = 972.83

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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.