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Finding the Third Proportional to 190,221 and 412,146

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Solution

The third proportional to 190,221 and 412,146 is: 892,984.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,221 : 412,146 = 412,146 : x
  2. Step 2: Convert to fraction form
    190,221/412,146 = 412,146/x
  3. Step 3: Cross multiply
    190,221x = 412,146 × 412,146
  4. Step 4: Simplify right side
    190,221x = 169,864,325,316
  5. Step 5: Solve for x
    x = 169,864,325,316/190,221
  6. Step 6: Final answer
    x = 892,984.08

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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.