Home / 1,683,120.40-2,322,724.64-919,196.44

Finding the Fourth Proportional to 1,683,120.40, 2,322,724.64 and 919,196.44

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Solution

The fourth proportional to 1,683,120.40, 2,322,724.64 and 919,196.44 is: 1,268,501.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,683,120.40 : 2,322,724.64 = 919,196.44 : x
  2. Step 2: Convert to fraction form
    1,683,120.40/2,322,724.64 = 919,196.44/x
  3. Step 3: Cross multiply
    1,683,120.40x = 2,322,724.64 × 919,196.44
  4. Step 4: Simplify right side
    1,683,120.40x = 2,135,040,220,188.28
  5. Step 5: Solve for x
    x = 2,135,040,220,188.28/1,683,120.40
  6. Step 6: Final answer
    x = 1,268,501.18

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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.