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Finding the Fourth Proportional to 555.11, 763.76 and 541.44

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Solution

The fourth proportional to 555.11, 763.76 and 541.44 is: 744.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.11 : 763.76 = 541.44 : x
  2. Step 2: Convert to fraction form
    555.11/763.76 = 541.44/x
  3. Step 3: Cross multiply
    555.11x = 763.76 × 541.44
  4. Step 4: Simplify right side
    555.11x = 413,530.21
  5. Step 5: Solve for x
    x = 413,530.21/555.11
  6. Step 6: Final answer
    x = 744.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.