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Finding the Fourth Proportional to 3,978,711.04, 5,969,231.10 and 1,282,982.02

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Solution

The fourth proportional to 3,978,711.04, 5,969,231.10 and 1,282,982.02 is: 1,924,848.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,978,711.04 : 5,969,231.10 = 1,282,982.02 : x
  2. Step 2: Convert to fraction form
    3,978,711.04/5,969,231.10 = 1,282,982.02/x
  3. Step 3: Cross multiply
    3,978,711.04x = 5,969,231.10 × 1,282,982.02
  4. Step 4: Simplify right side
    3,978,711.04x = 7,658,416,174,524.82
  5. Step 5: Solve for x
    x = 7,658,416,174,524.82/3,978,711.04
  6. Step 6: Final answer
    x = 1,924,848.55

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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.