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Finding the Fourth Proportional to 483,513.69, 725,020.25 and 217,044.75

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Solution

The fourth proportional to 483,513.69, 725,020.25 and 217,044.75 is: 325,454.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,513.69 : 725,020.25 = 217,044.75 : x
  2. Step 2: Convert to fraction form
    483,513.69/725,020.25 = 217,044.75/x
  3. Step 3: Cross multiply
    483,513.69x = 725,020.25 × 217,044.75
  4. Step 4: Simplify right side
    483,513.69x = 157,361,838,906.19
  5. Step 5: Solve for x
    x = 157,361,838,906.19/483,513.69
  6. Step 6: Final answer
    x = 325,454.77

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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.