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Finding the Fourth Proportional to 6,362,762.24, 8,780,819.20 and 3,647,020.80

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Solution

The fourth proportional to 6,362,762.24, 8,780,819.20 and 3,647,020.80 is: 5,033,007.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,362,762.24 : 8,780,819.20 = 3,647,020.80 : x
  2. Step 2: Convert to fraction form
    6,362,762.24/8,780,819.20 = 3,647,020.80/x
  3. Step 3: Cross multiply
    6,362,762.24x = 8,780,819.20 × 3,647,020.80
  4. Step 4: Simplify right side
    6,362,762.24x = 32,023,830,263,439.36
  5. Step 5: Solve for x
    x = 32,023,830,263,439.36/6,362,762.24
  6. Step 6: Final answer
    x = 5,033,007.53

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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.