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Finding the Fourth Proportional to 794.16, 1,190.52 and 361.20

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Solution

The fourth proportional to 794.16, 1,190.52 and 361.20 is: 541.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    794.16 : 1,190.52 = 361.20 : x
  2. Step 2: Convert to fraction form
    794.16/1,190.52 = 361.20/x
  3. Step 3: Cross multiply
    794.16x = 1,190.52 × 361.20
  4. Step 4: Simplify right side
    794.16x = 430,015.82
  5. Step 5: Solve for x
    x = 430,015.82/794.16
  6. Step 6: Final answer
    x = 541.47

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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.