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Finding the Fourth Proportional to 541.17, 811.85 and 194.72

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Solution

The fourth proportional to 541.17, 811.85 and 194.72 is: 292.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    541.17 : 811.85 = 194.72 : x
  2. Step 2: Convert to fraction form
    541.17/811.85 = 194.72/x
  3. Step 3: Cross multiply
    541.17x = 811.85 × 194.72
  4. Step 4: Simplify right side
    541.17x = 158,078.40
  5. Step 5: Solve for x
    x = 158,078.40/541.17
  6. Step 6: Final answer
    x = 292.10

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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.