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Finding the Fourth Proportional to 1,191.84, 1,788.44 and 462.03

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Solution

The fourth proportional to 1,191.84, 1,788.44 and 462.03 is: 693.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191.84 : 1,788.44 = 462.03 : x
  2. Step 2: Convert to fraction form
    1,191.84/1,788.44 = 462.03/x
  3. Step 3: Cross multiply
    1,191.84x = 1,788.44 × 462.03
  4. Step 4: Simplify right side
    1,191.84x = 826,310.62
  5. Step 5: Solve for x
    x = 826,310.62/1,191.84
  6. Step 6: Final answer
    x = 693.31

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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.