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Finding the Fourth Proportional to 3,491.73, 5,236.20 and 1,411.34

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Solution

The fourth proportional to 3,491.73, 5,236.20 and 1,411.34 is: 2,116.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491.73 : 5,236.20 = 1,411.34 : x
  2. Step 2: Convert to fraction form
    3,491.73/5,236.20 = 1,411.34/x
  3. Step 3: Cross multiply
    3,491.73x = 5,236.20 × 1,411.34
  4. Step 4: Simplify right side
    3,491.73x = 7,390,032.33
  5. Step 5: Solve for x
    x = 7,390,032.33/3,491.73
  6. Step 6: Final answer
    x = 2,116.44

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1.5x scale

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.