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Finding the Fourth Proportional to 996.11, 1,492.29 and 630.13

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Solution

The fourth proportional to 996.11, 1,492.29 and 630.13 is: 944.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    996.11 : 1,492.29 = 630.13 : x
  2. Step 2: Convert to fraction form
    996.11/1,492.29 = 630.13/x
  3. Step 3: Cross multiply
    996.11x = 1,492.29 × 630.13
  4. Step 4: Simplify right side
    996.11x = 940,333.11
  5. Step 5: Solve for x
    x = 940,333.11/996.11
  6. Step 6: Final answer
    x = 944.01

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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.