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Finding the Fourth Proportional to 225,819.40, 338,729.10 and 189,077.80

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Solution

The fourth proportional to 225,819.40, 338,729.10 and 189,077.80 is: 283,616.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,819.40 : 338,729.10 = 189,077.80 : x
  2. Step 2: Convert to fraction form
    225,819.40/338,729.10 = 189,077.80/x
  3. Step 3: Cross multiply
    225,819.40x = 338,729.10 × 189,077.80
  4. Step 4: Simplify right side
    225,819.40x = 64,046,153,023.98
  5. Step 5: Solve for x
    x = 64,046,153,023.98/225,819.40
  6. Step 6: Final answer
    x = 283,616.70

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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.