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Finding the Fourth Proportional to 5,447,332.62, 8,169,949.17 and 1,661,198.22

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Solution

The fourth proportional to 5,447,332.62, 8,169,949.17 and 1,661,198.22 is: 2,491,477.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,447,332.62 : 8,169,949.17 = 1,661,198.22 : x
  2. Step 2: Convert to fraction form
    5,447,332.62/8,169,949.17 = 1,661,198.22/x
  3. Step 3: Cross multiply
    5,447,332.62x = 8,169,949.17 × 1,661,198.22
  4. Step 4: Simplify right side
    5,447,332.62x = 13,571,905,018,694.48
  5. Step 5: Solve for x
    x = 13,571,905,018,694.48/5,447,332.62
  6. Step 6: Final answer
    x = 2,491,477.20

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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.