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Finding the Fourth Proportional to 1,996.44, 2,994.96 and 697.61

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Solution

The fourth proportional to 1,996.44, 2,994.96 and 697.61 is: 1,046.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.44 : 2,994.96 = 697.61 : x
  2. Step 2: Convert to fraction form
    1,996.44/2,994.96 = 697.61/x
  3. Step 3: Cross multiply
    1,996.44x = 2,994.96 × 697.61
  4. Step 4: Simplify right side
    1,996.44x = 2,089,299.07
  5. Step 5: Solve for x
    x = 2,089,299.07/1,996.44
  6. Step 6: Final answer
    x = 1,046.51

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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.