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Finding the Fourth Proportional to 263,272.80, 395,200.80 and 163,545.60

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Solution

The fourth proportional to 263,272.80, 395,200.80 and 163,545.60 is: 245,499.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,272.80 : 395,200.80 = 163,545.60 : x
  2. Step 2: Convert to fraction form
    263,272.80/395,200.80 = 163,545.60/x
  3. Step 3: Cross multiply
    263,272.80x = 395,200.80 × 163,545.60
  4. Step 4: Simplify right side
    263,272.80x = 64,633,351,956.48
  5. Step 5: Solve for x
    x = 64,633,351,956.48/263,272.80
  6. Step 6: Final answer
    x = 245,499.54

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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.