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Finding the Fourth Proportional to 263,701.20, 395,551.80 and 179,720.40

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Solution

The fourth proportional to 263,701.20, 395,551.80 and 179,720.40 is: 269,580.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,701.20 : 395,551.80 = 179,720.40 : x
  2. Step 2: Convert to fraction form
    263,701.20/395,551.80 = 179,720.40/x
  3. Step 3: Cross multiply
    263,701.20x = 395,551.80 × 179,720.40
  4. Step 4: Simplify right side
    263,701.20x = 71,088,727,716.72
  5. Step 5: Solve for x
    x = 71,088,727,716.72/263,701.20
  6. Step 6: Final answer
    x = 269,580.60

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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.