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Finding the Fourth Proportional to 629,857,697.60, 944,786,546.40 and 357,759,905.60

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Solution

The fourth proportional to 629,857,697.60, 944,786,546.40 and 357,759,905.60 is: 536,639,858.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,857,697.60 : 944,786,546.40 = 357,759,905.60 : x
  2. Step 2: Convert to fraction form
    629,857,697.60/944,786,546.40 = 357,759,905.60/x
  3. Step 3: Cross multiply
    629,857,697.60x = 944,786,546.40 × 357,759,905.60
  4. Step 4: Simplify right side
    629,857,697.60x = 338,006,745,652,214,016
  5. Step 5: Solve for x
    x = 338,006,745,652,214,016/629,857,697.60
  6. Step 6: Final answer
    x = 536,639,858.40

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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.