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Finding the Fourth Proportional to 994.74, 1,372.73 and 601.77

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Solution

The fourth proportional to 994.74, 1,372.73 and 601.77 is: 830.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    994.74 : 1,372.73 = 601.77 : x
  2. Step 2: Convert to fraction form
    994.74/1,372.73 = 601.77/x
  3. Step 3: Cross multiply
    994.74x = 1,372.73 × 601.77
  4. Step 4: Simplify right side
    994.74x = 826,067.73
  5. Step 5: Solve for x
    x = 826,067.73/994.74
  6. Step 6: Final answer
    x = 830.44

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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.