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Finding the Fourth Proportional to 994.24, 1,372.73 and 601.95

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Solution

The fourth proportional to 994.24, 1,372.73 and 601.95 is: 831.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    994.24 : 1,372.73 = 601.95 : x
  2. Step 2: Convert to fraction form
    994.24/1,372.73 = 601.95/x
  3. Step 3: Cross multiply
    994.24x = 1,372.73 × 601.95
  4. Step 4: Simplify right side
    994.24x = 826,314.82
  5. Step 5: Solve for x
    x = 826,314.82/994.24
  6. Step 6: Final answer
    x = 831.10

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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.