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Finding the Fourth Proportional to 451,627.20, 677,440.80 and 119,203.20

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Solution

The fourth proportional to 451,627.20, 677,440.80 and 119,203.20 is: 178,804.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,627.20 : 677,440.80 = 119,203.20 : x
  2. Step 2: Convert to fraction form
    451,627.20/677,440.80 = 119,203.20/x
  3. Step 3: Cross multiply
    451,627.20x = 677,440.80 × 119,203.20
  4. Step 4: Simplify right side
    451,627.20x = 80,753,111,170.56
  5. Step 5: Solve for x
    x = 80,753,111,170.56/451,627.20
  6. Step 6: Final answer
    x = 178,804.80

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Similar ratio
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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.