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Finding the Fourth Proportional to 1,842.74, 2,764.56 and 544.22

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Solution

The fourth proportional to 1,842.74, 2,764.56 and 544.22 is: 816.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,842.74 : 2,764.56 = 544.22 : x
  2. Step 2: Convert to fraction form
    1,842.74/2,764.56 = 544.22/x
  3. Step 3: Cross multiply
    1,842.74x = 2,764.56 × 544.22
  4. Step 4: Simplify right side
    1,842.74x = 1,504,528.84
  5. Step 5: Solve for x
    x = 1,504,528.84/1,842.74
  6. Step 6: Final answer
    x = 816.46

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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.