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Finding the Fourth Proportional to 349,680.78, 482,558.70 and 196,719.06

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Solution

The fourth proportional to 349,680.78, 482,558.70 and 196,719.06 is: 271,471.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,680.78 : 482,558.70 = 196,719.06 : x
  2. Step 2: Convert to fraction form
    349,680.78/482,558.70 = 196,719.06/x
  3. Step 3: Cross multiply
    349,680.78x = 482,558.70 × 196,719.06
  4. Step 4: Simplify right side
    349,680.78x = 94,928,493,858.82
  5. Step 5: Solve for x
    x = 94,928,493,858.82/349,680.78
  6. Step 6: Final answer
    x = 271,471.87

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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.