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Finding the Fourth Proportional to 3,196,822.92, 4,794,656.64 and 921,787.97

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Solution

The fourth proportional to 3,196,822.92, 4,794,656.64 and 921,787.97 is: 1,382,515.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,196,822.92 : 4,794,656.64 = 921,787.97 : x
  2. Step 2: Convert to fraction form
    3,196,822.92/4,794,656.64 = 921,787.97/x
  3. Step 3: Cross multiply
    3,196,822.92x = 4,794,656.64 × 921,787.97
  4. Step 4: Simplify right side
    3,196,822.92x = 4,419,656,787,059.34
  5. Step 5: Solve for x
    x = 4,419,656,787,059.34/3,196,822.92
  6. Step 6: Final answer
    x = 1,382,515.36

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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.