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Finding the Third Proportional to 358.50 and 574.88

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Solution

The third proportional to 358.50 and 574.88 is: 921.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.50 : 574.88 = 574.88 : x
  2. Step 2: Convert to fraction form
    358.50/574.88 = 574.88/x
  3. Step 3: Cross multiply
    358.50x = 574.88 × 574.88
  4. Step 4: Simplify right side
    358.50x = 330,481.27
  5. Step 5: Solve for x
    x = 330,481.27/358.50
  6. Step 6: Final answer
    x = 921.84

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.