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Finding the Fourth Proportional to 1,192.99, 1,788.96 and 699.88

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Solution

The fourth proportional to 1,192.99, 1,788.96 and 699.88 is: 1,049.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192.99 : 1,788.96 = 699.88 : x
  2. Step 2: Convert to fraction form
    1,192.99/1,788.96 = 699.88/x
  3. Step 3: Cross multiply
    1,192.99x = 1,788.96 × 699.88
  4. Step 4: Simplify right side
    1,192.99x = 1,252,057.32
  5. Step 5: Solve for x
    x = 1,252,057.32/1,192.99
  6. Step 6: Final answer
    x = 1,049.51

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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.