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Finding the Fourth Proportional to 486,593.60, 671,460.48 and 271,720.80

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Solution

The fourth proportional to 486,593.60, 671,460.48 and 271,720.80 is: 374,953.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,593.60 : 671,460.48 = 271,720.80 : x
  2. Step 2: Convert to fraction form
    486,593.60/671,460.48 = 271,720.80/x
  3. Step 3: Cross multiply
    486,593.60x = 671,460.48 × 271,720.80
  4. Step 4: Simplify right side
    486,593.60x = 182,449,778,793.98
  5. Step 5: Solve for x
    x = 182,449,778,793.98/486,593.60
  6. Step 6: Final answer
    x = 374,953.10

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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.