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Finding the Fourth Proportional to 336.76, 465 and 205.84

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Solution

The fourth proportional to 336.76, 465 and 205.84 is: 284.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.76 : 465 = 205.84 : x
  2. Step 2: Convert to fraction form
    336.76/465 = 205.84/x
  3. Step 3: Cross multiply
    336.76x = 465 × 205.84
  4. Step 4: Simplify right side
    336.76x = 95,715.60
  5. Step 5: Solve for x
    x = 95,715.60/336.76
  6. Step 6: Final answer
    x = 284.22

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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.