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Finding the Fourth Proportional to 844.50, 1,164.42 and 596.64

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Solution

The fourth proportional to 844.50, 1,164.42 and 596.64 is: 822.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    844.50 : 1,164.42 = 596.64 : x
  2. Step 2: Convert to fraction form
    844.50/1,164.42 = 596.64/x
  3. Step 3: Cross multiply
    844.50x = 1,164.42 × 596.64
  4. Step 4: Simplify right side
    844.50x = 694,739.55
  5. Step 5: Solve for x
    x = 694,739.55/844.50
  6. Step 6: Final answer
    x = 822.66

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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.