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Finding the Fourth Proportional to 462.68, 693.36 and 254

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Solution

The fourth proportional to 462.68, 693.36 and 254 is: 380.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    462.68 : 693.36 = 254 : x
  2. Step 2: Convert to fraction form
    462.68/693.36 = 254/x
  3. Step 3: Cross multiply
    462.68x = 693.36 × 254
  4. Step 4: Simplify right side
    462.68x = 176,112.17
  5. Step 5: Solve for x
    x = 176,112.17/462.68
  6. Step 6: Final answer
    x = 380.64

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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.