Home / 1,683,118.40-2,322,721.88-919,194.44

Finding the Fourth Proportional to 1,683,118.40, 2,322,721.88 and 919,194.44

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Solution

The fourth proportional to 1,683,118.40, 2,322,721.88 and 919,194.44 is: 1,268,498.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,683,118.40 : 2,322,721.88 = 919,194.44 : x
  2. Step 2: Convert to fraction form
    1,683,118.40/2,322,721.88 = 919,194.44/x
  3. Step 3: Cross multiply
    1,683,118.40x = 2,322,721.88 × 919,194.44
  4. Step 4: Simplify right side
    1,683,118.40x = 2,135,033,037,762.35
  5. Step 5: Solve for x
    x = 2,135,033,037,762.35/1,683,118.40
  6. Step 6: Final answer
    x = 1,268,498.42

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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.