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Finding the Fourth Proportional to 794.44, 1,190.70 and 361.16

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Solution

The fourth proportional to 794.44, 1,190.70 and 361.16 is: 541.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    794.44 : 1,190.70 = 361.16 : x
  2. Step 2: Convert to fraction form
    794.44/1,190.70 = 361.16/x
  3. Step 3: Cross multiply
    794.44x = 1,190.70 × 361.16
  4. Step 4: Simplify right side
    794.44x = 430,033.21
  5. Step 5: Solve for x
    x = 430,033.21/794.44
  6. Step 6: Final answer
    x = 541.30

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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.