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Finding the Fourth Proportional to 1,496.96, 2,241.96 and 879.44

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Solution

The fourth proportional to 1,496.96, 2,241.96 and 879.44 is: 1,317.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,496.96 : 2,241.96 = 879.44 : x
  2. Step 2: Convert to fraction form
    1,496.96/2,241.96 = 879.44/x
  3. Step 3: Cross multiply
    1,496.96x = 2,241.96 × 879.44
  4. Step 4: Simplify right side
    1,496.96x = 1,971,669.30
  5. Step 5: Solve for x
    x = 1,971,669.30/1,496.96
  6. Step 6: Final answer
    x = 1,317.12

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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.