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Finding the Fourth Proportional to 1,197.02, 1,796.21 and 547.75

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Solution

The fourth proportional to 1,197.02, 1,796.21 and 547.75 is: 821.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197.02 : 1,796.21 = 547.75 : x
  2. Step 2: Convert to fraction form
    1,197.02/1,796.21 = 547.75/x
  3. Step 3: Cross multiply
    1,197.02x = 1,796.21 × 547.75
  4. Step 4: Simplify right side
    1,197.02x = 983,874.03
  5. Step 5: Solve for x
    x = 983,874.03/1,197.02
  6. Step 6: Final answer
    x = 821.94

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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.