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Finding the Third Proportional to 890,287 and 1,886,512

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Solution

The third proportional to 890,287 and 1,886,512 is: 3,997,505.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,287 : 1,886,512 = 1,886,512 : x
  2. Step 2: Convert to fraction form
    890,287/1,886,512 = 1,886,512/x
  3. Step 3: Cross multiply
    890,287x = 1,886,512 × 1,886,512
  4. Step 4: Simplify right side
    890,287x = 3,558,927,526,144
  5. Step 5: Solve for x
    x = 3,558,927,526,144/890,287
  6. Step 6: Final answer
    x = 3,997,505.89

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.