Home / 619,261.20-929,021.40-198,579.60

Finding the Fourth Proportional to 619,261.20, 929,021.40 and 198,579.60

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Solution

The fourth proportional to 619,261.20, 929,021.40 and 198,579.60 is: 297,910.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,261.20 : 929,021.40 = 198,579.60 : x
  2. Step 2: Convert to fraction form
    619,261.20/929,021.40 = 198,579.60/x
  3. Step 3: Cross multiply
    619,261.20x = 929,021.40 × 198,579.60
  4. Step 4: Simplify right side
    619,261.20x = 184,484,698,003.44
  5. Step 5: Solve for x
    x = 184,484,698,003.44/619,261.20
  6. Step 6: Final answer
    x = 297,910.96

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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.