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Finding the Fourth Proportional to 1,082.20, 1,623.03 and 466.19

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Solution

The fourth proportional to 1,082.20, 1,623.03 and 466.19 is: 699.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,082.20 : 1,623.03 = 466.19 : x
  2. Step 2: Convert to fraction form
    1,082.20/1,623.03 = 466.19/x
  3. Step 3: Cross multiply
    1,082.20x = 1,623.03 × 466.19
  4. Step 4: Simplify right side
    1,082.20x = 756,640.36
  5. Step 5: Solve for x
    x = 756,640.36/1,082.20
  6. Step 6: Final answer
    x = 699.17

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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.