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Finding the Fourth Proportional to 409.76, 565.51 and 244

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Solution

The fourth proportional to 409.76, 565.51 and 244 is: 336.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    409.76 : 565.51 = 244 : x
  2. Step 2: Convert to fraction form
    409.76/565.51 = 244/x
  3. Step 3: Cross multiply
    409.76x = 565.51 × 244
  4. Step 4: Simplify right side
    409.76x = 137,984.44
  5. Step 5: Solve for x
    x = 137,984.44/409.76
  6. Step 6: Final answer
    x = 336.74

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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.