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Finding the Fourth Proportional to 484,854.97, 726,783.43 and 215,110.14

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Solution

The fourth proportional to 484,854.97, 726,783.43 and 215,110.14 is: 322,443.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,854.97 : 726,783.43 = 215,110.14 : x
  2. Step 2: Convert to fraction form
    484,854.97/726,783.43 = 215,110.14/x
  3. Step 3: Cross multiply
    484,854.97x = 726,783.43 × 215,110.14
  4. Step 4: Simplify right side
    484,854.97x = 156,338,485,376.98
  5. Step 5: Solve for x
    x = 156,338,485,376.98/484,854.97
  6. Step 6: Final answer
    x = 322,443.81

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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.