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Finding the Fourth Proportional to 3,764,999.60, 5,647,499.40 and 1,240,326.80

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Solution

The fourth proportional to 3,764,999.60, 5,647,499.40 and 1,240,326.80 is: 1,860,490.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,764,999.60 : 5,647,499.40 = 1,240,326.80 : x
  2. Step 2: Convert to fraction form
    3,764,999.60/5,647,499.40 = 1,240,326.80/x
  3. Step 3: Cross multiply
    3,764,999.60x = 5,647,499.40 × 1,240,326.80
  4. Step 4: Simplify right side
    3,764,999.60x = 7,004,744,858,803.92
  5. Step 5: Solve for x
    x = 7,004,744,858,803.92/3,764,999.60
  6. Step 6: Final answer
    x = 1,860,490.20

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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.