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Finding the Fourth Proportional to 2,825,893.78, 3,899,761.09 and 1,536,762.02

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Solution

The fourth proportional to 2,825,893.78, 3,899,761.09 and 1,536,762.02 is: 2,120,746.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825,893.78 : 3,899,761.09 = 1,536,762.02 : x
  2. Step 2: Convert to fraction form
    2,825,893.78/3,899,761.09 = 1,536,762.02/x
  3. Step 3: Cross multiply
    2,825,893.78x = 3,899,761.09 × 1,536,762.02
  4. Step 4: Simplify right side
    2,825,893.78x = 5,993,004,730,185.80
  5. Step 5: Solve for x
    x = 5,993,004,730,185.80/2,825,893.78
  6. Step 6: Final answer
    x = 2,120,746.64

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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.