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Finding the Fourth Proportional to 260,234.87, 389,906.35 and 174,685.58

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Solution

The fourth proportional to 260,234.87, 389,906.35 and 174,685.58 is: 261,729.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,234.87 : 389,906.35 = 174,685.58 : x
  2. Step 2: Convert to fraction form
    260,234.87/389,906.35 = 174,685.58/x
  3. Step 3: Cross multiply
    260,234.87x = 389,906.35 × 174,685.58
  4. Step 4: Simplify right side
    260,234.87x = 68,111,014,945.90
  5. Step 5: Solve for x
    x = 68,111,014,945.90/260,234.87
  6. Step 6: Final answer
    x = 261,729.02

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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.