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Finding the Fourth Proportional to 576.04, 863.26 and 316.04

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Solution

The fourth proportional to 576.04, 863.26 and 316.04 is: 473.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.04 : 863.26 = 316.04 : x
  2. Step 2: Convert to fraction form
    576.04/863.26 = 316.04/x
  3. Step 3: Cross multiply
    576.04x = 863.26 × 316.04
  4. Step 4: Simplify right side
    576.04x = 272,824.69
  5. Step 5: Solve for x
    x = 272,824.69/576.04
  6. Step 6: Final answer
    x = 473.62

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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.