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Finding the Fourth Proportional to 468, 701.64 and 251.28

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Solution

The fourth proportional to 468, 701.64 and 251.28 is: 376.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    468 : 701.64 = 251.28 : x
  2. Step 2: Convert to fraction form
    468/701.64 = 251.28/x
  3. Step 3: Cross multiply
    468x = 701.64 × 251.28
  4. Step 4: Simplify right side
    468x = 176,308.10
  5. Step 5: Solve for x
    x = 176,308.10/468
  6. Step 6: Final answer
    x = 376.73

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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.