Home / 619,539.28-929,308.98-220,195.84

Finding the Fourth Proportional to 619,539.28, 929,308.98 and 220,195.84

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Solution

The fourth proportional to 619,539.28, 929,308.98 and 220,195.84 is: 330,293.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,539.28 : 929,308.98 = 220,195.84 : x
  2. Step 2: Convert to fraction form
    619,539.28/929,308.98 = 220,195.84/x
  3. Step 3: Cross multiply
    619,539.28x = 929,308.98 × 220,195.84
  4. Step 4: Simplify right side
    619,539.28x = 204,629,971,470.64
  5. Step 5: Solve for x
    x = 204,629,971,470.64/619,539.28
  6. Step 6: Final answer
    x = 330,293.78

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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.