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Finding the Fourth Proportional to 969,969,736.60, 1,455,446,048.10 and 424,716,616.60

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Solution

The fourth proportional to 969,969,736.60, 1,455,446,048.10 and 424,716,616.60 is: 637,290,111.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,969,736.60 : 1,455,446,048.10 = 424,716,616.60 : x
  2. Step 2: Convert to fraction form
    969,969,736.60/1,455,446,048.10 = 424,716,616.60/x
  3. Step 3: Cross multiply
    969,969,736.60x = 1,455,446,048.10 × 424,716,616.60
  4. Step 4: Simplify right side
    969,969,736.60x = 618,152,121,192,872,832
  5. Step 5: Solve for x
    x = 618,152,121,192,872,832/969,969,736.60
  6. Step 6: Final answer
    x = 637,290,111.09

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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.