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Finding the Fourth Proportional to 508,600.44, 763,402.86 and 381,799.80

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Solution

The fourth proportional to 508,600.44, 763,402.86 and 381,799.80 is: 573,076.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,600.44 : 763,402.86 = 381,799.80 : x
  2. Step 2: Convert to fraction form
    508,600.44/763,402.86 = 381,799.80/x
  3. Step 3: Cross multiply
    508,600.44x = 763,402.86 × 381,799.80
  4. Step 4: Simplify right side
    508,600.44x = 291,467,059,267.43
  5. Step 5: Solve for x
    x = 291,467,059,267.43/508,600.44
  6. Step 6: Final answer
    x = 573,076.70

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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.