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Finding the Fourth Proportional to 664,449,631.20, 996,674,446.80 and 664,449,631.20

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Solution

The fourth proportional to 664,449,631.20, 996,674,446.80 and 664,449,631.20 is: 996,674,446.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,449,631.20 : 996,674,446.80 = 664,449,631.20 : x
  2. Step 2: Convert to fraction form
    664,449,631.20/996,674,446.80 = 664,449,631.20/x
  3. Step 3: Cross multiply
    664,449,631.20x = 996,674,446.80 × 664,449,631.20
  4. Step 4: Simplify right side
    664,449,631.20x = 662,239,968,602,724,096
  5. Step 5: Solve for x
    x = 662,239,968,602,724,096/664,449,631.20
  6. Step 6: Final answer
    x = 996,674,446.80

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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.