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Finding the Fourth Proportional to 809, 1,116.44 and 441

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Solution

The fourth proportional to 809, 1,116.44 and 441 is: 608.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    809 : 1,116.44 = 441 : x
  2. Step 2: Convert to fraction form
    809/1,116.44 = 441/x
  3. Step 3: Cross multiply
    809x = 1,116.44 × 441
  4. Step 4: Simplify right side
    809x = 492,350.04
  5. Step 5: Solve for x
    x = 492,350.04/809
  6. Step 6: Final answer
    x = 608.59

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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.