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Finding the Third Proportional to 199,946.25 and 428,033.25

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Solution

The third proportional to 199,946.25 and 428,033.25 is: 916,308.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,946.25 : 428,033.25 = 428,033.25 : x
  2. Step 2: Convert to fraction form
    199,946.25/428,033.25 = 428,033.25/x
  3. Step 3: Cross multiply
    199,946.25x = 428,033.25 × 428,033.25
  4. Step 4: Simplify right side
    199,946.25x = 183,212,463,105.56
  5. Step 5: Solve for x
    x = 183,212,463,105.56/199,946.25
  6. Step 6: Final answer
    x = 916,308.57

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.