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Finding the Fourth Proportional to 955.97, 1,318.97 and 582.96

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Solution

The fourth proportional to 955.97, 1,318.97 and 582.96 is: 804.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    955.97 : 1,318.97 = 582.96 : x
  2. Step 2: Convert to fraction form
    955.97/1,318.97 = 582.96/x
  3. Step 3: Cross multiply
    955.97x = 1,318.97 × 582.96
  4. Step 4: Simplify right side
    955.97x = 768,906.75
  5. Step 5: Solve for x
    x = 768,906.75/955.97
  6. Step 6: Final answer
    x = 804.32

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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.