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Finding the Third Proportional to 190,740 and 414,254

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Solution

The third proportional to 190,740 and 414,254 is: 899,687.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,740 : 414,254 = 414,254 : x
  2. Step 2: Convert to fraction form
    190,740/414,254 = 414,254/x
  3. Step 3: Cross multiply
    190,740x = 414,254 × 414,254
  4. Step 4: Simplify right side
    190,740x = 171,606,376,516
  5. Step 5: Solve for x
    x = 171,606,376,516/190,740
  6. Step 6: Final answer
    x = 899,687.41

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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.