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Finding the Fourth Proportional to 664,467,280.70, 996,700,921.05 and 664,467,280.70

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Solution

The fourth proportional to 664,467,280.70, 996,700,921.05 and 664,467,280.70 is: 996,700,921.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,467,280.70 : 996,700,921.05 = 664,467,280.70 : x
  2. Step 2: Convert to fraction form
    664,467,280.70/996,700,921.05 = 664,467,280.70/x
  3. Step 3: Cross multiply
    664,467,280.70x = 996,700,921.05 × 664,467,280.70
  4. Step 4: Simplify right side
    664,467,280.70x = 662,275,150,681,278,848
  5. Step 5: Solve for x
    x = 662,275,150,681,278,848/664,467,280.70
  6. Step 6: Final answer
    x = 996,700,921.05

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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.