Home / 1,640,255.36-2,263,553.81-915,103.22

Finding the Fourth Proportional to 1,640,255.36, 2,263,553.81 and 915,103.22

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Solution

The fourth proportional to 1,640,255.36, 2,263,553.81 and 915,103.22 is: 1,262,843.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,255.36 : 2,263,553.81 = 915,103.22 : x
  2. Step 2: Convert to fraction form
    1,640,255.36/2,263,553.81 = 915,103.22/x
  3. Step 3: Cross multiply
    1,640,255.36x = 2,263,553.81 × 915,103.22
  4. Step 4: Simplify right side
    1,640,255.36x = 2,071,385,380,174.27
  5. Step 5: Solve for x
    x = 2,071,385,380,174.27/1,640,255.36
  6. Step 6: Final answer
    x = 1,262,843.23

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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.