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Finding the Fourth Proportional to 1,994,871.56, 2,996,736.45 and 1,237,273.16

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Solution

The fourth proportional to 1,994,871.56, 2,996,736.45 and 1,237,273.16 is: 1,858,656.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994,871.56 : 2,996,736.45 = 1,237,273.16 : x
  2. Step 2: Convert to fraction form
    1,994,871.56/2,996,736.45 = 1,237,273.16/x
  3. Step 3: Cross multiply
    1,994,871.56x = 2,996,736.45 × 1,237,273.16
  4. Step 4: Simplify right side
    1,994,871.56x = 3,707,781,577,178.68
  5. Step 5: Solve for x
    x = 3,707,781,577,178.68/1,994,871.56
  6. Step 6: Final answer
    x = 1,858,656.79

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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.