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Finding the Fourth Proportional to 541.17, 812.51 and 277.81

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Solution

The fourth proportional to 541.17, 812.51 and 277.81 is: 417.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    541.17 : 812.51 = 277.81 : x
  2. Step 2: Convert to fraction form
    541.17/812.51 = 277.81/x
  3. Step 3: Cross multiply
    541.17x = 812.51 × 277.81
  4. Step 4: Simplify right side
    541.17x = 225,717.95
  5. Step 5: Solve for x
    x = 225,717.95/541.17
  6. Step 6: Final answer
    x = 417.09

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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.