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Finding the Fourth Proportional to 638,069.50, 957,101.47 and 188,793.18

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Solution

The fourth proportional to 638,069.50, 957,101.47 and 188,793.18 is: 283,188.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,069.50 : 957,101.47 = 188,793.18 : x
  2. Step 2: Convert to fraction form
    638,069.50/957,101.47 = 188,793.18/x
  3. Step 3: Cross multiply
    638,069.50x = 957,101.47 × 188,793.18
  4. Step 4: Simplify right side
    638,069.50x = 180,694,229,631.99
  5. Step 5: Solve for x
    x = 180,694,229,631.99/638,069.50
  6. Step 6: Final answer
    x = 283,188.95

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Double scale
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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.