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Finding the Third Proportional to 190.13 and 412.88

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Solution

The third proportional to 190.13 and 412.88 is: 896.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    190.13 : 412.88 = 412.88 : x
  2. Step 2: Convert to fraction form
    190.13/412.88 = 412.88/x
  3. Step 3: Cross multiply
    190.13x = 412.88 × 412.88
  4. Step 4: Simplify right side
    190.13x = 170,465.77
  5. Step 5: Solve for x
    x = 170,465.77/190.13
  6. Step 6: Final answer
    x = 896.60

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.