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Finding the Fourth Proportional to 508,518.53, 762,753.04 and 188,732.66

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Solution

The fourth proportional to 508,518.53, 762,753.04 and 188,732.66 is: 283,089.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,518.53 : 762,753.04 = 188,732.66 : x
  2. Step 2: Convert to fraction form
    508,518.53/762,753.04 = 188,732.66/x
  3. Step 3: Cross multiply
    508,518.53x = 762,753.04 × 188,732.66
  4. Step 4: Simplify right side
    508,518.53x = 143,956,405,876.69
  5. Step 5: Solve for x
    x = 143,956,405,876.69/508,518.53
  6. Step 6: Final answer
    x = 283,089.79

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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.