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Finding the Fourth Proportional to 300,807.60, 451,211.40 and 188,833.20

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Solution

The fourth proportional to 300,807.60, 451,211.40 and 188,833.20 is: 283,249.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,807.60 : 451,211.40 = 188,833.20 : x
  2. Step 2: Convert to fraction form
    300,807.60/451,211.40 = 188,833.20/x
  3. Step 3: Cross multiply
    300,807.60x = 451,211.40 × 188,833.20
  4. Step 4: Simplify right side
    300,807.60x = 85,203,692,538.48
  5. Step 5: Solve for x
    x = 85,203,692,538.48/300,807.60
  6. Step 6: Final answer
    x = 283,249.80

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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.