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Finding the Fourth Proportional to 2,785,638.33, 3,844,978.05 and 1,640,382.97

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Solution

The fourth proportional to 2,785,638.33, 3,844,978.05 and 1,640,382.97 is: 2,264,197.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785,638.33 : 3,844,978.05 = 1,640,382.97 : x
  2. Step 2: Convert to fraction form
    2,785,638.33/3,844,978.05 = 1,640,382.97/x
  3. Step 3: Cross multiply
    2,785,638.33x = 3,844,978.05 × 1,640,382.97
  4. Step 4: Simplify right side
    2,785,638.33x = 6,307,236,513,243.81
  5. Step 5: Solve for x
    x = 6,307,236,513,243.81/2,785,638.33
  6. Step 6: Final answer
    x = 2,264,197.92

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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.