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Finding the Third Proportional to 305,726 and 625,057

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Solution

The third proportional to 305,726 and 625,057 is: 1,277,929.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,726 : 625,057 = 625,057 : x
  2. Step 2: Convert to fraction form
    305,726/625,057 = 625,057/x
  3. Step 3: Cross multiply
    305,726x = 625,057 × 625,057
  4. Step 4: Simplify right side
    305,726x = 390,696,253,249
  5. Step 5: Solve for x
    x = 390,696,253,249/305,726
  6. Step 6: Final answer
    x = 1,277,929.43

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.