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Finding the Fourth Proportional to 3,196,824.92, 4,794,659.64 and 921,789.96

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Solution

The fourth proportional to 3,196,824.92, 4,794,659.64 and 921,789.96 is: 1,382,518.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,196,824.92 : 4,794,659.64 = 921,789.96 : x
  2. Step 2: Convert to fraction form
    3,196,824.92/4,794,659.64 = 921,789.96/x
  3. Step 3: Cross multiply
    3,196,824.92x = 4,794,659.64 × 921,789.96
  4. Step 4: Simplify right side
    3,196,824.92x = 4,419,669,117,769.21
  5. Step 5: Solve for x
    x = 4,419,669,117,769.21/3,196,824.92
  6. Step 6: Final answer
    x = 1,382,518.35

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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.