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Finding the Fourth Proportional to 996.68, 1,491.26 and 895.62

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Solution

The fourth proportional to 996.68, 1,491.26 and 895.62 is: 1,340.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    996.68 : 1,491.26 = 895.62 : x
  2. Step 2: Convert to fraction form
    996.68/1,491.26 = 895.62/x
  3. Step 3: Cross multiply
    996.68x = 1,491.26 × 895.62
  4. Step 4: Simplify right side
    996.68x = 1,335,602.28
  5. Step 5: Solve for x
    x = 1,335,602.28/996.68
  6. Step 6: Final answer
    x = 1,340.05

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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.