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Finding the Fourth Proportional to 634,162.96, 951,390.88 and 213,428.56

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Solution

The fourth proportional to 634,162.96, 951,390.88 and 213,428.56 is: 320,192.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,162.96 : 951,390.88 = 213,428.56 : x
  2. Step 2: Convert to fraction form
    634,162.96/951,390.88 = 213,428.56/x
  3. Step 3: Cross multiply
    634,162.96x = 951,390.88 × 213,428.56
  4. Step 4: Simplify right side
    634,162.96x = 203,053,985,515.53
  5. Step 5: Solve for x
    x = 203,053,985,515.53/634,162.96
  6. Step 6: Final answer
    x = 320,192.12

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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.