Home / 619,385.20-929,077.80-198,703.60

Finding the Fourth Proportional to 619,385.20, 929,077.80 and 198,703.60

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Solution

The fourth proportional to 619,385.20, 929,077.80 and 198,703.60 is: 298,055.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,385.20 : 929,077.80 = 198,703.60 : x
  2. Step 2: Convert to fraction form
    619,385.20/929,077.80 = 198,703.60/x
  3. Step 3: Cross multiply
    619,385.20x = 929,077.80 × 198,703.60
  4. Step 4: Simplify right side
    619,385.20x = 184,611,103,540.08
  5. Step 5: Solve for x
    x = 184,611,103,540.08/619,385.20
  6. Step 6: Final answer
    x = 298,055.40

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Similar ratio
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1.5x scale

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.