Home / 1,277,342.33-1,916,383.31-378,805.68

Finding the Fourth Proportional to 1,277,342.33, 1,916,383.31 and 378,805.68

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Solution

The fourth proportional to 1,277,342.33, 1,916,383.31 and 378,805.68 is: 568,318.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,342.33 : 1,916,383.31 = 378,805.68 : x
  2. Step 2: Convert to fraction form
    1,277,342.33/1,916,383.31 = 378,805.68/x
  3. Step 3: Cross multiply
    1,277,342.33x = 1,916,383.31 × 378,805.68
  4. Step 4: Simplify right side
    1,277,342.33x = 725,936,880,991.17
  5. Step 5: Solve for x
    x = 725,936,880,991.17/1,277,342.33
  6. Step 6: Final answer
    x = 568,318.19

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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.