Home / 619,928.20-929,892.30-199,246.60

Finding the Fourth Proportional to 619,928.20, 929,892.30 and 199,246.60

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Solution

The fourth proportional to 619,928.20, 929,892.30 and 199,246.60 is: 298,869.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,928.20 : 929,892.30 = 199,246.60 : x
  2. Step 2: Convert to fraction form
    619,928.20/929,892.30 = 199,246.60/x
  3. Step 3: Cross multiply
    619,928.20x = 929,892.30 × 199,246.60
  4. Step 4: Simplify right side
    619,928.20x = 185,277,879,141.18
  5. Step 5: Solve for x
    x = 185,277,879,141.18/619,928.20
  6. Step 6: Final answer
    x = 298,869.90

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Double scale
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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.