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Finding the Fourth Proportional to 629,916,563.20, 944,874,844.80 and 629,916,563.20

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Solution

The fourth proportional to 629,916,563.20, 944,874,844.80 and 629,916,563.20 is: 944,874,844.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,916,563.20 : 944,874,844.80 = 629,916,563.20 : x
  2. Step 2: Convert to fraction form
    629,916,563.20/944,874,844.80 = 629,916,563.20/x
  3. Step 3: Cross multiply
    629,916,563.20x = 944,874,844.80 × 629,916,563.20
  4. Step 4: Simplify right side
    629,916,563.20x = 595,192,314,890,549,376
  5. Step 5: Solve for x
    x = 595,192,314,890,549,376/629,916,563.20
  6. Step 6: Final answer
    x = 944,874,844.80

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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.