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Finding the Third Proportional to 189,261 and 413,946

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Solution

The third proportional to 189,261 and 413,946 is: 905,370.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,261 : 413,946 = 413,946 : x
  2. Step 2: Convert to fraction form
    189,261/413,946 = 413,946/x
  3. Step 3: Cross multiply
    189,261x = 413,946 × 413,946
  4. Step 4: Simplify right side
    189,261x = 171,351,290,916
  5. Step 5: Solve for x
    x = 171,351,290,916/189,261
  6. Step 6: Final answer
    x = 905,370.31

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.