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Finding the Fourth Proportional to 994.95, 1,492.49 and 264.53

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Solution

The fourth proportional to 994.95, 1,492.49 and 264.53 is: 396.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    994.95 : 1,492.49 = 264.53 : x
  2. Step 2: Convert to fraction form
    994.95/1,492.49 = 264.53/x
  3. Step 3: Cross multiply
    994.95x = 1,492.49 × 264.53
  4. Step 4: Simplify right side
    994.95x = 394,812.77
  5. Step 5: Solve for x
    x = 394,812.77/994.95
  6. Step 6: Final answer
    x = 396.82

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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.