Home / 619,255.60-928,664.70-219,909.40

Finding the Fourth Proportional to 619,255.60, 928,664.70 and 219,909.40

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Solution

The fourth proportional to 619,255.60, 928,664.70 and 219,909.40 is: 329,786.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,255.60 : 928,664.70 = 219,909.40 : x
  2. Step 2: Convert to fraction form
    619,255.60/928,664.70 = 219,909.40/x
  3. Step 3: Cross multiply
    619,255.60x = 928,664.70 × 219,909.40
  4. Step 4: Simplify right side
    619,255.60x = 204,222,096,978.18
  5. Step 5: Solve for x
    x = 204,222,096,978.18/619,255.60
  6. Step 6: Final answer
    x = 329,786.44

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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.