Home / 619,444.20-928,538.70-419,784.60

Finding the Fourth Proportional to 619,444.20, 928,538.70 and 419,784.60

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Solution

The fourth proportional to 619,444.20, 928,538.70 and 419,784.60 is: 629,251.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,444.20 : 928,538.70 = 419,784.60 : x
  2. Step 2: Convert to fraction form
    619,444.20/928,538.70 = 419,784.60/x
  3. Step 3: Cross multiply
    619,444.20x = 928,538.70 × 419,784.60
  4. Step 4: Simplify right side
    619,444.20x = 389,786,246,764.02
  5. Step 5: Solve for x
    x = 389,786,246,764.02/619,444.20
  6. Step 6: Final answer
    x = 629,251.59

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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.