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Finding the Fourth Proportional to 3,967,458.96, 5,946,207.52 and 2,145,751.28

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Solution

The fourth proportional to 3,967,458.96, 5,946,207.52 and 2,145,751.28 is: 3,215,933.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,967,458.96 : 5,946,207.52 = 2,145,751.28 : x
  2. Step 2: Convert to fraction form
    3,967,458.96/5,946,207.52 = 2,145,751.28/x
  3. Step 3: Cross multiply
    3,967,458.96x = 5,946,207.52 × 2,145,751.28
  4. Step 4: Simplify right side
    3,967,458.96x = 12,759,082,397,185.62
  5. Step 5: Solve for x
    x = 12,759,082,397,185.62/3,967,458.96
  6. Step 6: Final answer
    x = 3,215,933.05

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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.