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Finding the Fourth Proportional to 666,791.32, 999,176.73 and 441,344.11

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Solution

The fourth proportional to 666,791.32, 999,176.73 and 441,344.11 is: 661,347.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,791.32 : 999,176.73 = 441,344.11 : x
  2. Step 2: Convert to fraction form
    666,791.32/999,176.73 = 441,344.11/x
  3. Step 3: Cross multiply
    666,791.32x = 999,176.73 × 441,344.11
  4. Step 4: Simplify right side
    666,791.32x = 440,980,764,634.56
  5. Step 5: Solve for x
    x = 440,980,764,634.56/666,791.32
  6. Step 6: Final answer
    x = 661,347.49

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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.