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Finding the Fourth Proportional to 1,293.41, 1,940.42 and 563.20

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Solution

The fourth proportional to 1,293.41, 1,940.42 and 563.20 is: 844.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293.41 : 1,940.42 = 563.20 : x
  2. Step 2: Convert to fraction form
    1,293.41/1,940.42 = 563.20/x
  3. Step 3: Cross multiply
    1,293.41x = 1,940.42 × 563.20
  4. Step 4: Simplify right side
    1,293.41x = 1,092,836.88
  5. Step 5: Solve for x
    x = 1,092,836.88/1,293.41
  6. Step 6: Final answer
    x = 844.93

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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.