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Finding the Fourth Proportional to 964.99, 1,449.25 and 883.66

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Solution

The fourth proportional to 964.99, 1,449.25 and 883.66 is: 1,327.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    964.99 : 1,449.25 = 883.66 : x
  2. Step 2: Convert to fraction form
    964.99/1,449.25 = 883.66/x
  3. Step 3: Cross multiply
    964.99x = 1,449.25 × 883.66
  4. Step 4: Simplify right side
    964.99x = 1,280,644.26
  5. Step 5: Solve for x
    x = 1,280,644.26/964.99
  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.