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Finding the Fourth Proportional to 4,018,478.22, 5,542,292.70 and 2,643,234.30

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Solution

The fourth proportional to 4,018,478.22, 5,542,292.70 and 2,643,234.30 is: 3,645,553.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,018,478.22 : 5,542,292.70 = 2,643,234.30 : x
  2. Step 2: Convert to fraction form
    4,018,478.22/5,542,292.70 = 2,643,234.30/x
  3. Step 3: Cross multiply
    4,018,478.22x = 5,542,292.70 × 2,643,234.30
  4. Step 4: Simplify right side
    4,018,478.22x = 14,649,578,165,279.61
  5. Step 5: Solve for x
    x = 14,649,578,165,279.61/4,018,478.22
  6. Step 6: Final answer
    x = 3,645,553.71

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.