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Finding the Fourth Proportional to 6,644,211.60, 9,949,728.60 and 4,388,134.80

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Solution

The fourth proportional to 6,644,211.60, 9,949,728.60 and 4,388,134.80 is: 6,571,246.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,644,211.60 : 9,949,728.60 = 4,388,134.80 : x
  2. Step 2: Convert to fraction form
    6,644,211.60/9,949,728.60 = 4,388,134.80/x
  3. Step 3: Cross multiply
    6,644,211.60x = 9,949,728.60 × 4,388,134.80
  4. Step 4: Simplify right side
    6,644,211.60x = 43,660,750,320,215.27
  5. Step 5: Solve for x
    x = 43,660,750,320,215.27/6,644,211.60
  6. Step 6: Final answer
    x = 6,571,246.21

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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.