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Finding the Fourth Proportional to 1,199.03, 1,654.46 and 674.96

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Solution

The fourth proportional to 1,199.03, 1,654.46 and 674.96 is: 931.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,199.03 : 1,654.46 = 674.96 : x
  2. Step 2: Convert to fraction form
    1,199.03/1,654.46 = 674.96/x
  3. Step 3: Cross multiply
    1,199.03x = 1,654.46 × 674.96
  4. Step 4: Simplify right side
    1,199.03x = 1,116,687.74
  5. Step 5: Solve for x
    x = 1,116,687.74/1,199.03
  6. Step 6: Final answer
    x = 931.33

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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.