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Finding the Fourth Proportional to 994.62, 1,492.14 and 301.24

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Solution

The fourth proportional to 994.62, 1,492.14 and 301.24 is: 451.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    994.62 : 1,492.14 = 301.24 : x
  2. Step 2: Convert to fraction form
    994.62/1,492.14 = 301.24/x
  3. Step 3: Cross multiply
    994.62x = 1,492.14 × 301.24
  4. Step 4: Simplify right side
    994.62x = 449,492.25
  5. Step 5: Solve for x
    x = 449,492.25/994.62
  6. Step 6: Final answer
    x = 451.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.