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Finding the Fourth Proportional to 360, 496.74 and 202.62

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Solution

The fourth proportional to 360, 496.74 and 202.62 is: 279.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    360 : 496.74 = 202.62 : x
  2. Step 2: Convert to fraction form
    360/496.74 = 202.62/x
  3. Step 3: Cross multiply
    360x = 496.74 × 202.62
  4. Step 4: Simplify right side
    360x = 100,649.46
  5. Step 5: Solve for x
    x = 100,649.46/360
  6. Step 6: Final answer
    x = 279.58

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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.