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Finding the Fourth Proportional to 994.16, 1,372.40 and 596.01

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Solution

The fourth proportional to 994.16, 1,372.40 and 596.01 is: 822.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    994.16 : 1,372.40 = 596.01 : x
  2. Step 2: Convert to fraction form
    994.16/1,372.40 = 596.01/x
  3. Step 3: Cross multiply
    994.16x = 1,372.40 × 596.01
  4. Step 4: Simplify right side
    994.16x = 817,964.12
  5. Step 5: Solve for x
    x = 817,964.12/994.16
  6. Step 6: Final answer
    x = 822.77

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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.