Home / 1,383,528.25-1,909,268.99-779,916.25

Finding the Fourth Proportional to 1,383,528.25, 1,909,268.99 and 779,916.25

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Solution

The fourth proportional to 1,383,528.25, 1,909,268.99 and 779,916.25 is: 1,076,284.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,528.25 : 1,909,268.99 = 779,916.25 : x
  2. Step 2: Convert to fraction form
    1,383,528.25/1,909,268.99 = 779,916.25/x
  3. Step 3: Cross multiply
    1,383,528.25x = 1,909,268.99 × 779,916.25
  4. Step 4: Simplify right side
    1,383,528.25x = 1,489,069,910,922.09
  5. Step 5: Solve for x
    x = 1,489,069,910,922.09/1,383,528.25
  6. Step 6: Final answer
    x = 1,076,284.43

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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.