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Finding the Fourth Proportional to 335.76, 504 and 220.47

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Solution

The fourth proportional to 335.76, 504 and 220.47 is: 330.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.76 : 504 = 220.47 : x
  2. Step 2: Convert to fraction form
    335.76/504 = 220.47/x
  3. Step 3: Cross multiply
    335.76x = 504 × 220.47
  4. Step 4: Simplify right side
    335.76x = 111,116.88
  5. Step 5: Solve for x
    x = 111,116.88/335.76
  6. Step 6: Final answer
    x = 330.94

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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.