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Finding the Fourth Proportional to 646,394.39, 969,591.59 and 203,162.39

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Solution

The fourth proportional to 646,394.39, 969,591.59 and 203,162.39 is: 304,743.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,394.39 : 969,591.59 = 203,162.39 : x
  2. Step 2: Convert to fraction form
    646,394.39/969,591.59 = 203,162.39/x
  3. Step 3: Cross multiply
    646,394.39x = 969,591.59 × 203,162.39
  4. Step 4: Simplify right side
    646,394.39x = 196,984,538,884.53
  5. Step 5: Solve for x
    x = 196,984,538,884.53/646,394.39
  6. Step 6: Final answer
    x = 304,743.58

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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.