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Finding the Fourth Proportional to 1,922.44, 2,883.66 and 769.00

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Solution

The fourth proportional to 1,922.44, 2,883.66 and 769.00 is: 1,153.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,922.44 : 2,883.66 = 769.00 : x
  2. Step 2: Convert to fraction form
    1,922.44/2,883.66 = 769.00/x
  3. Step 3: Cross multiply
    1,922.44x = 2,883.66 × 769.00
  4. Step 4: Simplify right side
    1,922.44x = 2,217,525.41
  5. Step 5: Solve for x
    x = 2,217,525.41/1,922.44
  6. Step 6: Final answer
    x = 1,153.50

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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.