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Finding the Third Proportional to 420,186 and 922,012

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Solution

The third proportional to 420,186 and 922,012 is: 2,023,166.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,186 : 922,012 = 922,012 : x
  2. Step 2: Convert to fraction form
    420,186/922,012 = 922,012/x
  3. Step 3: Cross multiply
    420,186x = 922,012 × 922,012
  4. Step 4: Simplify right side
    420,186x = 850,106,128,144
  5. Step 5: Solve for x
    x = 850,106,128,144/420,186
  6. Step 6: Final answer
    x = 2,023,166.24

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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.