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Finding the Fourth Proportional to 964.44, 1,327.73 and 865.98

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Solution

The fourth proportional to 964.44, 1,327.73 and 865.98 is: 1,192.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    964.44 : 1,327.73 = 865.98 : x
  2. Step 2: Convert to fraction form
    964.44/1,327.73 = 865.98/x
  3. Step 3: Cross multiply
    964.44x = 1,327.73 × 865.98
  4. Step 4: Simplify right side
    964.44x = 1,149,783.30
  5. Step 5: Solve for x
    x = 1,149,783.30/964.44
  6. Step 6: Final answer
    x = 1,192.18

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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.