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Finding the Fourth Proportional to 7,233,958.46, 9,978,321.76 and 4,291,692.49

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Solution

The fourth proportional to 7,233,958.46, 9,978,321.76 and 4,291,692.49 is: 5,919,841.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,233,958.46 : 9,978,321.76 = 4,291,692.49 : x
  2. Step 2: Convert to fraction form
    7,233,958.46/9,978,321.76 = 4,291,692.49/x
  3. Step 3: Cross multiply
    7,233,958.46x = 9,978,321.76 × 4,291,692.49
  4. Step 4: Simplify right side
    7,233,958.46x = 42,823,888,497,764.27
  5. Step 5: Solve for x
    x = 42,823,888,497,764.27/7,233,958.46
  6. Step 6: Final answer
    x = 5,919,841.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.