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Finding the Fourth Proportional to 1,338.12, 1,846.82 and 814.06

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Solution

The fourth proportional to 1,338.12, 1,846.82 and 814.06 is: 1,123.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338.12 : 1,846.82 = 814.06 : x
  2. Step 2: Convert to fraction form
    1,338.12/1,846.82 = 814.06/x
  3. Step 3: Cross multiply
    1,338.12x = 1,846.82 × 814.06
  4. Step 4: Simplify right side
    1,338.12x = 1,503,422.29
  5. Step 5: Solve for x
    x = 1,503,422.29/1,338.12
  6. Step 6: Final answer
    x = 1,123.53

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.