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Finding the Fourth Proportional to 6,483,967.50, 8,947,902.94 and 3,543,843.80

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Solution

The fourth proportional to 6,483,967.50, 8,947,902.94 and 3,543,843.80 is: 4,890,519.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,483,967.50 : 8,947,902.94 = 3,543,843.80 : x
  2. Step 2: Convert to fraction form
    6,483,967.50/8,947,902.94 = 3,543,843.80/x
  3. Step 3: Cross multiply
    6,483,967.50x = 8,947,902.94 × 3,543,843.80
  4. Step 4: Simplify right side
    6,483,967.50x = 31,709,970,356,920.77
  5. Step 5: Solve for x
    x = 31,709,970,356,920.77/6,483,967.50
  6. Step 6: Final answer
    x = 4,890,519.63

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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.