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Finding the Fourth Proportional to 481,039.16, 721,807.62 and 349,009.16

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Solution

The fourth proportional to 481,039.16, 721,807.62 and 349,009.16 is: 523,694.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,039.16 : 721,807.62 = 349,009.16 : x
  2. Step 2: Convert to fraction form
    481,039.16/721,807.62 = 349,009.16/x
  3. Step 3: Cross multiply
    481,039.16x = 721,807.62 × 349,009.16
  4. Step 4: Simplify right side
    481,039.16x = 251,917,469,392.75
  5. Step 5: Solve for x
    x = 251,917,469,392.75/481,039.16
  6. Step 6: Final answer
    x = 523,694.31

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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.