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Finding the Fourth Proportional to 486,637.92, 666,682.81 and 468,443.97

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Solution

The fourth proportional to 486,637.92, 666,682.81 and 468,443.97 is: 641,757.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,637.92 : 666,682.81 = 468,443.97 : x
  2. Step 2: Convert to fraction form
    486,637.92/666,682.81 = 468,443.97/x
  3. Step 3: Cross multiply
    486,637.92x = 666,682.81 × 468,443.97
  4. Step 4: Simplify right side
    486,637.92x = 312,303,541,076.05
  5. Step 5: Solve for x
    x = 312,303,541,076.05/486,637.92
  6. Step 6: Final answer
    x = 641,757.51

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.