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Finding the Fourth Proportional to 443,638.50, 612,177.26 and 271,604.97

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Solution

The fourth proportional to 443,638.50, 612,177.26 and 271,604.97 is: 374,788.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,638.50 : 612,177.26 = 271,604.97 : x
  2. Step 2: Convert to fraction form
    443,638.50/612,177.26 = 271,604.97/x
  3. Step 3: Cross multiply
    443,638.50x = 612,177.26 × 271,604.97
  4. Step 4: Simplify right side
    443,638.50x = 166,270,384,978.96
  5. Step 5: Solve for x
    x = 166,270,384,978.96/443,638.50
  6. Step 6: Final answer
    x = 374,788.00

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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.