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Finding the Fourth Proportional to 1,623.70, 2,240.85 and 960.22

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Solution

The fourth proportional to 1,623.70, 2,240.85 and 960.22 is: 1,325.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,623.70 : 2,240.85 = 960.22 : x
  2. Step 2: Convert to fraction form
    1,623.70/2,240.85 = 960.22/x
  3. Step 3: Cross multiply
    1,623.70x = 2,240.85 × 960.22
  4. Step 4: Simplify right side
    1,623.70x = 2,151,708.99
  5. Step 5: Solve for x
    x = 2,151,708.99/1,623.70
  6. Step 6: Final answer
    x = 1,325.19

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.