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Finding the Fourth Proportional to 1,961,994.76, 2,943,739.34 and 682,744.36

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Solution

The fourth proportional to 1,961,994.76, 2,943,739.34 and 682,744.36 is: 1,024,376.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961,994.76 : 2,943,739.34 = 682,744.36 : x
  2. Step 2: Convert to fraction form
    1,961,994.76/2,943,739.34 = 682,744.36/x
  3. Step 3: Cross multiply
    1,961,994.76x = 2,943,739.34 × 682,744.36
  4. Step 4: Simplify right side
    1,961,994.76x = 2,009,821,431,695.12
  5. Step 5: Solve for x
    x = 2,009,821,431,695.12/1,961,994.76
  6. Step 6: Final answer
    x = 1,024,376.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.