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Finding the Third Proportional to 393.75 and 575.88

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Solution

The third proportional to 393.75 and 575.88 is: 842.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    393.75 : 575.88 = 575.88 : x
  2. Step 2: Convert to fraction form
    393.75/575.88 = 575.88/x
  3. Step 3: Cross multiply
    393.75x = 575.88 × 575.88
  4. Step 4: Simplify right side
    393.75x = 331,632.02
  5. Step 5: Solve for x
    x = 331,632.02/393.75
  6. Step 6: Final answer
    x = 842.24

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.