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Finding the Third Proportional to 531,707.25 and 817,272.25

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Solution

The third proportional to 531,707.25 and 817,272.25 is: 1,256,206.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,707.25 : 817,272.25 = 817,272.25 : x
  2. Step 2: Convert to fraction form
    531,707.25/817,272.25 = 817,272.25/x
  3. Step 3: Cross multiply
    531,707.25x = 817,272.25 × 817,272.25
  4. Step 4: Simplify right side
    531,707.25x = 667,933,930,620.06
  5. Step 5: Solve for x
    x = 667,933,930,620.06/531,707.25
  6. Step 6: Final answer
    x = 1,256,206.17

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.