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Finding the Fourth Proportional to 338,257.80, 506,730.60 and 188,229.60

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Solution

The fourth proportional to 338,257.80, 506,730.60 and 188,229.60 is: 281,979.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,257.80 : 506,730.60 = 188,229.60 : x
  2. Step 2: Convert to fraction form
    338,257.80/506,730.60 = 188,229.60/x
  3. Step 3: Cross multiply
    338,257.80x = 506,730.60 × 188,229.60
  4. Step 4: Simplify right side
    338,257.80x = 95,381,698,145.76
  5. Step 5: Solve for x
    x = 95,381,698,145.76/338,257.80
  6. Step 6: Final answer
    x = 281,979.30

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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.