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Finding the Fourth Proportional to 2,964.74, 4,447.31 and 884.70

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Solution

The fourth proportional to 2,964.74, 4,447.31 and 884.70 is: 1,327.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,964.74 : 4,447.31 = 884.70 : x
  2. Step 2: Convert to fraction form
    2,964.74/4,447.31 = 884.70/x
  3. Step 3: Cross multiply
    2,964.74x = 4,447.31 × 884.70
  4. Step 4: Simplify right side
    2,964.74x = 3,934,530.73
  5. Step 5: Solve for x
    x = 3,934,530.73/2,964.74
  6. Step 6: Final answer
    x = 1,327.11

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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.