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Finding the Third Proportional to 197,438.25 and 426,398.25

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Solution

The third proportional to 197,438.25 and 426,398.25 is: 920,872.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,438.25 : 426,398.25 = 426,398.25 : x
  2. Step 2: Convert to fraction form
    197,438.25/426,398.25 = 426,398.25/x
  3. Step 3: Cross multiply
    197,438.25x = 426,398.25 × 426,398.25
  4. Step 4: Simplify right side
    197,438.25x = 181,815,467,603.06
  5. Step 5: Solve for x
    x = 181,815,467,603.06/197,438.25
  6. Step 6: Final answer
    x = 920,872.56

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.