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Finding the Fourth Proportional to 994.64, 1,372.32 and 596.48

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Solution

The fourth proportional to 994.64, 1,372.32 and 596.48 is: 822.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    994.64 : 1,372.32 = 596.48 : x
  2. Step 2: Convert to fraction form
    994.64/1,372.32 = 596.48/x
  3. Step 3: Cross multiply
    994.64x = 1,372.32 × 596.48
  4. Step 4: Simplify right side
    994.64x = 818,561.43
  5. Step 5: Solve for x
    x = 818,561.43/994.64
  6. Step 6: Final answer
    x = 822.97

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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.