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Finding the Fourth Proportional to 664,299,434.60, 996,449,151.90 and 664,299,434.60

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Solution

The fourth proportional to 664,299,434.60, 996,449,151.90 and 664,299,434.60 is: 996,449,151.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,299,434.60 : 996,449,151.90 = 664,299,434.60 : x
  2. Step 2: Convert to fraction form
    664,299,434.60/996,449,151.90 = 664,299,434.60/x
  3. Step 3: Cross multiply
    664,299,434.60x = 996,449,151.90 × 664,299,434.60
  4. Step 4: Simplify right side
    664,299,434.60x = 661,940,608,214,819,584
  5. Step 5: Solve for x
    x = 661,940,608,214,819,584/664,299,434.60
  6. Step 6: Final answer
    x = 996,449,151.90

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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.