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Finding the Fourth Proportional to 619,194.72, 928,793.10 and 169,921.74

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Solution

The fourth proportional to 619,194.72, 928,793.10 and 169,921.74 is: 254,882.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,194.72 : 928,793.10 = 169,921.74 : x
  2. Step 2: Convert to fraction form
    619,194.72/928,793.10 = 169,921.74/x
  3. Step 3: Cross multiply
    619,194.72x = 928,793.10 × 169,921.74
  4. Step 4: Simplify right side
    619,194.72x = 157,822,139,651.99
  5. Step 5: Solve for x
    x = 157,822,139,651.99/619,194.72
  6. Step 6: Final answer
    x = 254,882.89

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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.