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Finding the Fourth Proportional to 967.44, 1,447.92 and 945.84

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Solution

The fourth proportional to 967.44, 1,447.92 and 945.84 is: 1,415.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.44 : 1,447.92 = 945.84 : x
  2. Step 2: Convert to fraction form
    967.44/1,447.92 = 945.84/x
  3. Step 3: Cross multiply
    967.44x = 1,447.92 × 945.84
  4. Step 4: Simplify right side
    967.44x = 1,369,500.65
  5. Step 5: Solve for x
    x = 1,369,500.65/967.44
  6. Step 6: Final answer
    x = 1,415.59

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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.