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Finding the Fourth Proportional to 6,392,169.22, 8,818,384.67 and 3,911,508.04

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Solution

The fourth proportional to 6,392,169.22, 8,818,384.67 and 3,911,508.04 is: 5,396,162.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,392,169.22 : 8,818,384.67 = 3,911,508.04 : x
  2. Step 2: Convert to fraction form
    6,392,169.22/8,818,384.67 = 3,911,508.04/x
  3. Step 3: Cross multiply
    6,392,169.22x = 8,818,384.67 × 3,911,508.04
  4. Step 4: Simplify right side
    6,392,169.22x = 34,493,182,536,517.75
  5. Step 5: Solve for x
    x = 34,493,182,536,517.75/6,392,169.22
  6. Step 6: Final answer
    x = 5,396,162.30

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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.