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Finding the Fourth Proportional to 1,082.94, 1,494.04 and 662.95

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Solution

The fourth proportional to 1,082.94, 1,494.04 and 662.95 is: 914.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,082.94 : 1,494.04 = 662.95 : x
  2. Step 2: Convert to fraction form
    1,082.94/1,494.04 = 662.95/x
  3. Step 3: Cross multiply
    1,082.94x = 1,494.04 × 662.95
  4. Step 4: Simplify right side
    1,082.94x = 990,473.82
  5. Step 5: Solve for x
    x = 990,473.82/1,082.94
  6. Step 6: Final answer
    x = 914.62

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Why These Related Problems?

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