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Finding the Fourth Proportional to 3,571,866.72, 4,929,181.29 and 1,940,274.41

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Solution

The fourth proportional to 3,571,866.72, 4,929,181.29 and 1,940,274.41 is: 2,677,581.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,571,866.72 : 4,929,181.29 = 1,940,274.41 : x
  2. Step 2: Convert to fraction form
    3,571,866.72/4,929,181.29 = 1,940,274.41/x
  3. Step 3: Cross multiply
    3,571,866.72x = 4,929,181.29 × 1,940,274.41
  4. Step 4: Simplify right side
    3,571,866.72x = 9,563,964,294,591.88
  5. Step 5: Solve for x
    x = 9,563,964,294,591.88/3,571,866.72
  6. Step 6: Final answer
    x = 2,677,581.51

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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.