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Finding the Fourth Proportional to 423,503.20, 635,157.78 and 252,773.08

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Solution

The fourth proportional to 423,503.20, 635,157.78 and 252,773.08 is: 379,101.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,503.20 : 635,157.78 = 252,773.08 : x
  2. Step 2: Convert to fraction form
    423,503.20/635,157.78 = 252,773.08/x
  3. Step 3: Cross multiply
    423,503.20x = 635,157.78 × 252,773.08
  4. Step 4: Simplify right side
    423,503.20x = 160,550,788,336.56
  5. Step 5: Solve for x
    x = 160,550,788,336.56/423,503.20
  6. Step 6: Final answer
    x = 379,101.71

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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.