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Finding the Fourth Proportional to 6,643,394.80, 9,969,757.80 and 4,253,052.40

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Solution

The fourth proportional to 6,643,394.80, 9,969,757.80 and 4,253,052.40 is: 6,382,565.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643,394.80 : 9,969,757.80 = 4,253,052.40 : x
  2. Step 2: Convert to fraction form
    6,643,394.80/9,969,757.80 = 4,253,052.40/x
  3. Step 3: Cross multiply
    6,643,394.80x = 9,969,757.80 × 4,253,052.40
  4. Step 4: Simplify right side
    6,643,394.80x = 42,401,902,338,708.73
  5. Step 5: Solve for x
    x = 42,401,902,338,708.73/6,643,394.80
  6. Step 6: Final answer
    x = 6,382,565.48

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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.