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Finding the Fourth Proportional to 994.84, 1,492.12 and 264.48

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Solution

The fourth proportional to 994.84, 1,492.12 and 264.48 is: 396.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    994.84 : 1,492.12 = 264.48 : x
  2. Step 2: Convert to fraction form
    994.84/1,492.12 = 264.48/x
  3. Step 3: Cross multiply
    994.84x = 1,492.12 × 264.48
  4. Step 4: Simplify right side
    994.84x = 394,635.90
  5. Step 5: Solve for x
    x = 394,635.90/994.84
  6. Step 6: Final answer
    x = 396.68

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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.