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Finding the Fourth Proportional to 1,353.82, 1,868.23 and 756.33

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Solution

The fourth proportional to 1,353.82, 1,868.23 and 756.33 is: 1,043.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353.82 : 1,868.23 = 756.33 : x
  2. Step 2: Convert to fraction form
    1,353.82/1,868.23 = 756.33/x
  3. Step 3: Cross multiply
    1,353.82x = 1,868.23 × 756.33
  4. Step 4: Simplify right side
    1,353.82x = 1,412,998.40
  5. Step 5: Solve for x
    x = 1,412,998.40/1,353.82
  6. Step 6: Final answer
    x = 1,043.71

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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.