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Finding the Fourth Proportional to 541.61, 812.17 and 194.89

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Solution

The fourth proportional to 541.61, 812.17 and 194.89 is: 292.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    541.61 : 812.17 = 194.89 : x
  2. Step 2: Convert to fraction form
    541.61/812.17 = 194.89/x
  3. Step 3: Cross multiply
    541.61x = 812.17 × 194.89
  4. Step 4: Simplify right side
    541.61x = 158,283.81
  5. Step 5: Solve for x
    x = 158,283.81/541.61
  6. Step 6: Final answer
    x = 292.25

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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.