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Finding the Fourth Proportional to 3,672,844.40, 5,509,266.60 and 3,084,978.80

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Solution

The fourth proportional to 3,672,844.40, 5,509,266.60 and 3,084,978.80 is: 4,627,468.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,672,844.40 : 5,509,266.60 = 3,084,978.80 : x
  2. Step 2: Convert to fraction form
    3,672,844.40/5,509,266.60 = 3,084,978.80/x
  3. Step 3: Cross multiply
    3,672,844.40x = 5,509,266.60 × 3,084,978.80
  4. Step 4: Simplify right side
    3,672,844.40x = 16,995,970,664,548.08
  5. Step 5: Solve for x
    x = 16,995,970,664,548.08/3,672,844.40
  6. Step 6: Final answer
    x = 4,627,468.20

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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.