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Finding the Fourth Proportional to 634,694.80, 951,444.72 and 213,676.56

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Solution

The fourth proportional to 634,694.80, 951,444.72 and 213,676.56 is: 320,313.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,694.80 : 951,444.72 = 213,676.56 : x
  2. Step 2: Convert to fraction form
    634,694.80/951,444.72 = 213,676.56/x
  3. Step 3: Cross multiply
    634,694.80x = 951,444.72 × 213,676.56
  4. Step 4: Simplify right side
    634,694.80x = 203,301,434,799.76
  5. Step 5: Solve for x
    x = 203,301,434,799.76/634,694.80
  6. Step 6: Final answer
    x = 320,313.69

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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.