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Finding the Fourth Proportional to 477,940.76, 659,481.06 and 273,954.14

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Solution

The fourth proportional to 477,940.76, 659,481.06 and 273,954.14 is: 378,012.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,940.76 : 659,481.06 = 273,954.14 : x
  2. Step 2: Convert to fraction form
    477,940.76/659,481.06 = 273,954.14/x
  3. Step 3: Cross multiply
    477,940.76x = 659,481.06 × 273,954.14
  4. Step 4: Simplify right side
    477,940.76x = 180,667,566,638.59
  5. Step 5: Solve for x
    x = 180,667,566,638.59/477,940.76
  6. Step 6: Final answer
    x = 378,012.47

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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.