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Finding the Fourth Proportional to 1,346.69, 2,020.94 and 481

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Solution

The fourth proportional to 1,346.69, 2,020.94 and 481 is: 721.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346.69 : 2,020.94 = 481 : x
  2. Step 2: Convert to fraction form
    1,346.69/2,020.94 = 481/x
  3. Step 3: Cross multiply
    1,346.69x = 2,020.94 × 481
  4. Step 4: Simplify right side
    1,346.69x = 972,072.14
  5. Step 5: Solve for x
    x = 972,072.14/1,346.69
  6. Step 6: Final answer
    x = 721.82

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.