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Finding the Fourth Proportional to 619,680.89, 929,324.49 and 198,858.35

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Solution

The fourth proportional to 619,680.89, 929,324.49 and 198,858.35 is: 298,224.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,680.89 : 929,324.49 = 198,858.35 : x
  2. Step 2: Convert to fraction form
    619,680.89/929,324.49 = 198,858.35/x
  3. Step 3: Cross multiply
    619,680.89x = 929,324.49 × 198,858.35
  4. Step 4: Simplify right side
    619,680.89x = 184,803,930,049.37
  5. Step 5: Solve for x
    x = 184,803,930,049.37/619,680.89
  6. Step 6: Final answer
    x = 298,224.35

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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.