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Finding the Fourth Proportional to 1,322,361.92, 1,825,738.24 and 1,015,892.48

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Solution

The fourth proportional to 1,322,361.92, 1,825,738.24 and 1,015,892.48 is: 1,402,606.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,322,361.92 : 1,825,738.24 = 1,015,892.48 : x
  2. Step 2: Convert to fraction form
    1,322,361.92/1,825,738.24 = 1,015,892.48/x
  3. Step 3: Cross multiply
    1,322,361.92x = 1,825,738.24 × 1,015,892.48
  4. Step 4: Simplify right side
    1,322,361.92x = 1,854,753,748,464.44
  5. Step 5: Solve for x
    x = 1,854,753,748,464.44/1,322,361.92
  6. Step 6: Final answer
    x = 1,402,606.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.