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Finding the Fourth Proportional to 300,704.40, 450,385.92 and 167,443.20

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Solution

The fourth proportional to 300,704.40, 450,385.92 and 167,443.20 is: 250,791.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,704.40 : 450,385.92 = 167,443.20 : x
  2. Step 2: Convert to fraction form
    300,704.40/450,385.92 = 167,443.20/x
  3. Step 3: Cross multiply
    300,704.40x = 450,385.92 × 167,443.20
  4. Step 4: Simplify right side
    300,704.40x = 75,414,059,679.74
  5. Step 5: Solve for x
    x = 75,414,059,679.74/300,704.40
  6. Step 6: Final answer
    x = 250,791.34

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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.