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Finding the Third Proportional to 815,778 and 1,767,148.50

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Solution

The third proportional to 815,778 and 1,767,148.50 is: 3,828,019.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,778 : 1,767,148.50 = 1,767,148.50 : x
  2. Step 2: Convert to fraction form
    815,778/1,767,148.50 = 1,767,148.50/x
  3. Step 3: Cross multiply
    815,778x = 1,767,148.50 × 1,767,148.50
  4. Step 4: Simplify right side
    815,778x = 3,122,813,821,052.25
  5. Step 5: Solve for x
    x = 3,122,813,821,052.25/815,778
  6. Step 6: Final answer
    x = 3,828,019.17

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.