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Finding the Fourth Proportional to 447,688.60, 671,110.80 and 222,836.56

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Solution

The fourth proportional to 447,688.60, 671,110.80 and 222,836.56 is: 334,044.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,688.60 : 671,110.80 = 222,836.56 : x
  2. Step 2: Convert to fraction form
    447,688.60/671,110.80 = 222,836.56/x
  3. Step 3: Cross multiply
    447,688.60x = 671,110.80 × 222,836.56
  4. Step 4: Simplify right side
    447,688.60x = 149,548,022,050.85
  5. Step 5: Solve for x
    x = 149,548,022,050.85/447,688.60
  6. Step 6: Final answer
    x = 334,044.74

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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.