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Finding the Fourth Proportional to 502,839.20, 693,906.72 and 273,393.20

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Solution

The fourth proportional to 502,839.20, 693,906.72 and 273,393.20 is: 377,276.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,839.20 : 693,906.72 = 273,393.20 : x
  2. Step 2: Convert to fraction form
    502,839.20/693,906.72 = 273,393.20/x
  3. Step 3: Cross multiply
    502,839.20x = 693,906.72 × 273,393.20
  4. Step 4: Simplify right side
    502,839.20x = 189,709,378,682.30
  5. Step 5: Solve for x
    x = 189,709,378,682.30/502,839.20
  6. Step 6: Final answer
    x = 377,276.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.