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Finding the Third Proportional to 401,935 and 622,077

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Solution

The third proportional to 401,935 and 622,077 is: 962,791.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,935 : 622,077 = 622,077 : x
  2. Step 2: Convert to fraction form
    401,935/622,077 = 622,077/x
  3. Step 3: Cross multiply
    401,935x = 622,077 × 622,077
  4. Step 4: Simplify right side
    401,935x = 386,979,793,929
  5. Step 5: Solve for x
    x = 386,979,793,929/401,935
  6. Step 6: Final answer
    x = 962,791.98

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.