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Finding the Third Proportional to 1,778,115.38 and 2,540,888.16

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Solution

The third proportional to 1,778,115.38 and 2,540,888.16 is: 3,630,873.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778,115.38 : 2,540,888.16 = 2,540,888.16 : x
  2. Step 2: Convert to fraction form
    1,778,115.38/2,540,888.16 = 2,540,888.16/x
  3. Step 3: Cross multiply
    1,778,115.38x = 2,540,888.16 × 2,540,888.16
  4. Step 4: Simplify right side
    1,778,115.38x = 6,456,112,622,571.53
  5. Step 5: Solve for x
    x = 6,456,112,622,571.53/1,778,115.38
  6. Step 6: Final answer
    x = 3,630,873.85

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.