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Finding the Fourth Proportional to 347,678.37, 479,713.91 and 196,775.37

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Solution

The fourth proportional to 347,678.37, 479,713.91 and 196,775.37 is: 271,503.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,678.37 : 479,713.91 = 196,775.37 : x
  2. Step 2: Convert to fraction form
    347,678.37/479,713.91 = 196,775.37/x
  3. Step 3: Cross multiply
    347,678.37x = 479,713.91 × 196,775.37
  4. Step 4: Simplify right side
    347,678.37x = 94,395,882,134.40
  5. Step 5: Solve for x
    x = 94,395,882,134.40/347,678.37
  6. Step 6: Final answer
    x = 271,503.46

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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.