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Finding the Third Proportional to 412.13 and 633.38

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Solution

The third proportional to 412.13 and 633.38 is: 973.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    412.13 : 633.38 = 633.38 : x
  2. Step 2: Convert to fraction form
    412.13/633.38 = 633.38/x
  3. Step 3: Cross multiply
    412.13x = 633.38 × 633.38
  4. Step 4: Simplify right side
    412.13x = 401,163.89
  5. Step 5: Solve for x
    x = 401,163.89/412.13
  6. Step 6: Final answer
    x = 973.40

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.