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Finding the Fourth Proportional to 1,674.11, 2,507.22 and 850.34

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Solution

The fourth proportional to 1,674.11, 2,507.22 and 850.34 is: 1,273.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,674.11 : 2,507.22 = 850.34 : x
  2. Step 2: Convert to fraction form
    1,674.11/2,507.22 = 850.34/x
  3. Step 3: Cross multiply
    1,674.11x = 2,507.22 × 850.34
  4. Step 4: Simplify right side
    1,674.11x = 2,131,995.72
  5. Step 5: Solve for x
    x = 2,131,995.72/1,674.11
  6. Step 6: Final answer
    x = 1,273.51

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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.