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Finding the Fourth Proportional to 335.36, 462.88 and 202.64

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Solution

The fourth proportional to 335.36, 462.88 and 202.64 is: 279.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.36 : 462.88 = 202.64 : x
  2. Step 2: Convert to fraction form
    335.36/462.88 = 202.64/x
  3. Step 3: Cross multiply
    335.36x = 462.88 × 202.64
  4. Step 4: Simplify right side
    335.36x = 93,798.00
  5. Step 5: Solve for x
    x = 93,798.00/335.36
  6. Step 6: Final answer
    x = 279.69

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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.