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Finding the Fourth Proportional to 619,137.48, 928,798.50 and 219,744.81

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Solution

The fourth proportional to 619,137.48, 928,798.50 and 219,744.81 is: 329,649.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,137.48 : 928,798.50 = 219,744.81 : x
  2. Step 2: Convert to fraction form
    619,137.48/928,798.50 = 219,744.81/x
  3. Step 3: Cross multiply
    619,137.48x = 928,798.50 × 219,744.81
  4. Step 4: Simplify right side
    619,137.48x = 204,098,649,910.79
  5. Step 5: Solve for x
    x = 204,098,649,910.79/619,137.48
  6. Step 6: Final answer
    x = 329,649.97

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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.