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Finding the Fourth Proportional to 324,053.60, 485,617.10 and 237,989.39

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Solution

The fourth proportional to 324,053.60, 485,617.10 and 237,989.39 is: 356,643.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,053.60 : 485,617.10 = 237,989.39 : x
  2. Step 2: Convert to fraction form
    324,053.60/485,617.10 = 237,989.39/x
  3. Step 3: Cross multiply
    324,053.60x = 485,617.10 × 237,989.39
  4. Step 4: Simplify right side
    324,053.60x = 115,571,713,784.54
  5. Step 5: Solve for x
    x = 115,571,713,784.54/324,053.60
  6. Step 6: Final answer
    x = 356,643.83

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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.