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Finding the Third Proportional to 189,355 and 410,899

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Solution

The third proportional to 189,355 and 410,899 is: 891,647.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,355 : 410,899 = 410,899 : x
  2. Step 2: Convert to fraction form
    189,355/410,899 = 410,899/x
  3. Step 3: Cross multiply
    189,355x = 410,899 × 410,899
  4. Step 4: Simplify right side
    189,355x = 168,837,988,201
  5. Step 5: Solve for x
    x = 168,837,988,201/189,355
  6. Step 6: Final answer
    x = 891,647.90

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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.