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Finding the Fourth Proportional to 1,220.94, 1,832.22 and 562.41

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Solution

The fourth proportional to 1,220.94, 1,832.22 and 562.41 is: 843.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220.94 : 1,832.22 = 562.41 : x
  2. Step 2: Convert to fraction form
    1,220.94/1,832.22 = 562.41/x
  3. Step 3: Cross multiply
    1,220.94x = 1,832.22 × 562.41
  4. Step 4: Simplify right side
    1,220.94x = 1,030,458.85
  5. Step 5: Solve for x
    x = 1,030,458.85/1,220.94
  6. Step 6: Final answer
    x = 843.99

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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.