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Finding the Fourth Proportional to 1,190.76, 1,786.10 and 533.24

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Solution

The fourth proportional to 1,190.76, 1,786.10 and 533.24 is: 799.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190.76 : 1,786.10 = 533.24 : x
  2. Step 2: Convert to fraction form
    1,190.76/1,786.10 = 533.24/x
  3. Step 3: Cross multiply
    1,190.76x = 1,786.10 × 533.24
  4. Step 4: Simplify right side
    1,190.76x = 952,408.37
  5. Step 5: Solve for x
    x = 952,408.37/1,190.76
  6. Step 6: Final answer
    x = 799.83

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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.