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Finding the Fourth Proportional to 263,611.80, 395,417.70 and 251,364.60

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Solution

The fourth proportional to 263,611.80, 395,417.70 and 251,364.60 is: 377,046.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,611.80 : 395,417.70 = 251,364.60 : x
  2. Step 2: Convert to fraction form
    263,611.80/395,417.70 = 251,364.60/x
  3. Step 3: Cross multiply
    263,611.80x = 395,417.70 × 251,364.60
  4. Step 4: Simplify right side
    263,611.80x = 99,394,011,993.42
  5. Step 5: Solve for x
    x = 99,394,011,993.42/263,611.80
  6. Step 6: Final answer
    x = 377,046.90

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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.