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Finding the Fourth Proportional to 666,786.51, 999,169.47 and 441,339.27

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Solution

The fourth proportional to 666,786.51, 999,169.47 and 441,339.27 is: 661,340.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,786.51 : 999,169.47 = 441,339.27 : x
  2. Step 2: Convert to fraction form
    666,786.51/999,169.47 = 441,339.27/x
  3. Step 3: Cross multiply
    666,786.51x = 999,169.47 × 441,339.27
  4. Step 4: Simplify right side
    666,786.51x = 440,972,724,496.09
  5. Step 5: Solve for x
    x = 440,972,724,496.09/666,786.51
  6. Step 6: Final answer
    x = 661,340.20

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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.