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Finding the Fourth Proportional to 1,082.57, 1,623.99 and 562.82

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Solution

The fourth proportional to 1,082.57, 1,623.99 and 562.82 is: 844.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,082.57 : 1,623.99 = 562.82 : x
  2. Step 2: Convert to fraction form
    1,082.57/1,623.99 = 562.82/x
  3. Step 3: Cross multiply
    1,082.57x = 1,623.99 × 562.82
  4. Step 4: Simplify right side
    1,082.57x = 914,014.05
  5. Step 5: Solve for x
    x = 914,014.05/1,082.57
  6. Step 6: Final answer
    x = 844.30

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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.