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Finding the Fourth Proportional to 461.76, 637.50 and 338.07

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Solution

The fourth proportional to 461.76, 637.50 and 338.07 is: 466.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    461.76 : 637.50 = 338.07 : x
  2. Step 2: Convert to fraction form
    461.76/637.50 = 338.07/x
  3. Step 3: Cross multiply
    461.76x = 637.50 × 338.07
  4. Step 4: Simplify right side
    461.76x = 215,519.63
  5. Step 5: Solve for x
    x = 215,519.63/461.76
  6. Step 6: Final answer
    x = 466.74

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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.