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Finding the Fourth Proportional to 6,924,978.20, 10,388,003.49 and 2,313,980.39

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Solution

The fourth proportional to 6,924,978.20, 10,388,003.49 and 2,313,980.39 is: 3,471,149.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,924,978.20 : 10,388,003.49 = 2,313,980.39 : x
  2. Step 2: Convert to fraction form
    6,924,978.20/10,388,003.49 = 2,313,980.39/x
  3. Step 3: Cross multiply
    6,924,978.20x = 10,388,003.49 × 2,313,980.39
  4. Step 4: Simplify right side
    6,924,978.20x = 24,037,636,393,081.57
  5. Step 5: Solve for x
    x = 24,037,636,393,081.57/6,924,978.20
  6. Step 6: Final answer
    x = 3,471,149.76

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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.