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Finding the Fourth Proportional to 664,336.35, 996,504.53 and 190,993.95

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Solution

The fourth proportional to 664,336.35, 996,504.53 and 190,993.95 is: 286,490.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,336.35 : 996,504.53 = 190,993.95 : x
  2. Step 2: Convert to fraction form
    664,336.35/996,504.53 = 190,993.95/x
  3. Step 3: Cross multiply
    664,336.35x = 996,504.53 × 190,993.95
  4. Step 4: Simplify right side
    664,336.35x = 190,326,335,422.62
  5. Step 5: Solve for x
    x = 190,326,335,422.62/664,336.35
  6. Step 6: Final answer
    x = 286,490.93

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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.