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Finding the Fourth Proportional to 4,198,220.20, 6,287,999.10 and 4,198,220.20

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Solution

The fourth proportional to 4,198,220.20, 6,287,999.10 and 4,198,220.20 is: 6,287,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,198,220.20 : 6,287,999.10 = 4,198,220.20 : x
  2. Step 2: Convert to fraction form
    4,198,220.20/6,287,999.10 = 4,198,220.20/x
  3. Step 3: Cross multiply
    4,198,220.20x = 6,287,999.10 × 4,198,220.20
  4. Step 4: Simplify right side
    4,198,220.20x = 26,398,404,839,201.82
  5. Step 5: Solve for x
    x = 26,398,404,839,201.82/4,198,220.20
  6. Step 6: Final answer
    x = 6,287,999.10

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1.5x scale

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.