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Finding the Fourth Proportional to 486,627.64, 671,539.50 and 271,771.48

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Solution

The fourth proportional to 486,627.64, 671,539.50 and 271,771.48 is: 375,040.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,627.64 : 671,539.50 = 271,771.48 : x
  2. Step 2: Convert to fraction form
    486,627.64/671,539.50 = 271,771.48/x
  3. Step 3: Cross multiply
    486,627.64x = 671,539.50 × 271,771.48
  4. Step 4: Simplify right side
    486,627.64x = 182,505,283,793.46
  5. Step 5: Solve for x
    x = 182,505,283,793.46/486,627.64
  6. Step 6: Final answer
    x = 375,040.93

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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.