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Finding the Third Proportional to 357.75 and 482.25

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Solution

The third proportional to 357.75 and 482.25 is: 650.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.75 : 482.25 = 482.25 : x
  2. Step 2: Convert to fraction form
    357.75/482.25 = 482.25/x
  3. Step 3: Cross multiply
    357.75x = 482.25 × 482.25
  4. Step 4: Simplify right side
    357.75x = 232,565.06
  5. Step 5: Solve for x
    x = 232,565.06/357.75
  6. Step 6: Final answer
    x = 650.08

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.