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Finding the Third Proportional to 815,971.22 and 1,919,365.88

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Solution

The third proportional to 815,971.22 and 1,919,365.88 is: 4,514,822.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,971.22 : 1,919,365.88 = 1,919,365.88 : x
  2. Step 2: Convert to fraction form
    815,971.22/1,919,365.88 = 1,919,365.88/x
  3. Step 3: Cross multiply
    815,971.22x = 1,919,365.88 × 1,919,365.88
  4. Step 4: Simplify right side
    815,971.22x = 3,683,965,362,114.52
  5. Step 5: Solve for x
    x = 3,683,965,362,114.52/815,971.22
  6. Step 6: Final answer
    x = 4,514,822.68

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.