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Finding the Fourth Proportional to 447,898.83, 618,112.09 and 243,957.48

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Solution

The fourth proportional to 447,898.83, 618,112.09 and 243,957.48 is: 336,667.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,898.83 : 618,112.09 = 243,957.48 : x
  2. Step 2: Convert to fraction form
    447,898.83/618,112.09 = 243,957.48/x
  3. Step 3: Cross multiply
    447,898.83x = 618,112.09 × 243,957.48
  4. Step 4: Simplify right side
    447,898.83x = 150,793,067,833.93
  5. Step 5: Solve for x
    x = 150,793,067,833.93/447,898.83
  6. Step 6: Final answer
    x = 336,667.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.