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Finding the Fourth Proportional to 994.92, 1,492.26 and 264.48

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Solution

The fourth proportional to 994.92, 1,492.26 and 264.48 is: 396.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    994.92 : 1,492.26 = 264.48 : x
  2. Step 2: Convert to fraction form
    994.92/1,492.26 = 264.48/x
  3. Step 3: Cross multiply
    994.92x = 1,492.26 × 264.48
  4. Step 4: Simplify right side
    994.92x = 394,672.92
  5. Step 5: Solve for x
    x = 394,672.92/994.92
  6. Step 6: Final answer
    x = 396.69

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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.