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Finding the Fourth Proportional to 995.27, 1,491.68 and 832.46

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Solution

The fourth proportional to 995.27, 1,491.68 and 832.46 is: 1,247.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.27 : 1,491.68 = 832.46 : x
  2. Step 2: Convert to fraction form
    995.27/1,491.68 = 832.46/x
  3. Step 3: Cross multiply
    995.27x = 1,491.68 × 832.46
  4. Step 4: Simplify right side
    995.27x = 1,241,752.31
  5. Step 5: Solve for x
    x = 1,241,752.31/995.27
  6. Step 6: Final answer
    x = 1,247.66

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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.