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Finding the Fourth Proportional to 263,261.60, 394,114.80 and 174,615.20

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Solution

The fourth proportional to 263,261.60, 394,114.80 and 174,615.20 is: 261,407.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,261.60 : 394,114.80 = 174,615.20 : x
  2. Step 2: Convert to fraction form
    263,261.60/394,114.80 = 174,615.20/x
  3. Step 3: Cross multiply
    263,261.60x = 394,114.80 × 174,615.20
  4. Step 4: Simplify right side
    263,261.60x = 68,818,434,624.96
  5. Step 5: Solve for x
    x = 68,818,434,624.96/263,261.60
  6. Step 6: Final answer
    x = 261,407.04

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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.