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Finding the Fourth Proportional to 263,659.88, 395,508.45 and 130,504.39

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Solution

The fourth proportional to 263,659.88, 395,508.45 and 130,504.39 is: 195,765.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,659.88 : 395,508.45 = 130,504.39 : x
  2. Step 2: Convert to fraction form
    263,659.88/395,508.45 = 130,504.39/x
  3. Step 3: Cross multiply
    263,659.88x = 395,508.45 × 130,504.39
  4. Step 4: Simplify right side
    263,659.88x = 51,615,587,528.93
  5. Step 5: Solve for x
    x = 51,615,587,528.93/263,659.88
  6. Step 6: Final answer
    x = 195,765.80

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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.