Home / 619,151.20-928,856.40-198,469.60

Finding the Fourth Proportional to 619,151.20, 928,856.40 and 198,469.60

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Solution

The fourth proportional to 619,151.20, 928,856.40 and 198,469.60 is: 297,745.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,151.20 : 928,856.40 = 198,469.60 : x
  2. Step 2: Convert to fraction form
    619,151.20/928,856.40 = 198,469.60/x
  3. Step 3: Cross multiply
    619,151.20x = 928,856.40 × 198,469.60
  4. Step 4: Simplify right side
    619,151.20x = 184,349,758,165.44
  5. Step 5: Solve for x
    x = 184,349,758,165.44/619,151.20
  6. Step 6: Final answer
    x = 297,745.94

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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.