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Finding the Third Proportional to 188,478 and 410,247

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Solution

The third proportional to 188,478 and 410,247 is: 892,956.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,478 : 410,247 = 410,247 : x
  2. Step 2: Convert to fraction form
    188,478/410,247 = 410,247/x
  3. Step 3: Cross multiply
    188,478x = 410,247 × 410,247
  4. Step 4: Simplify right side
    188,478x = 168,302,601,009
  5. Step 5: Solve for x
    x = 168,302,601,009/188,478
  6. Step 6: Final answer
    x = 892,956.21

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.