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Finding the Fourth Proportional to 502,213.68, 693,066.84 and 275,863.92

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Solution

The fourth proportional to 502,213.68, 693,066.84 and 275,863.92 is: 380,698.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,213.68 : 693,066.84 = 275,863.92 : x
  2. Step 2: Convert to fraction form
    502,213.68/693,066.84 = 275,863.92/x
  3. Step 3: Cross multiply
    502,213.68x = 693,066.84 × 275,863.92
  4. Step 4: Simplify right side
    502,213.68x = 191,192,135,304.41
  5. Step 5: Solve for x
    x = 191,192,135,304.41/502,213.68
  6. Step 6: Final answer
    x = 380,698.78

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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.