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Finding the Fourth Proportional to 694,389,597.84, 958,256,372.52 and 397,037,423.88

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Solution

The fourth proportional to 694,389,597.84, 958,256,372.52 and 397,037,423.88 is: 547,910,917.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,389,597.84 : 958,256,372.52 = 397,037,423.88 : x
  2. Step 2: Convert to fraction form
    694,389,597.84/958,256,372.52 = 397,037,423.88/x
  3. Step 3: Cross multiply
    694,389,597.84x = 958,256,372.52 × 397,037,423.88
  4. Step 4: Simplify right side
    694,389,597.84x = 380,463,641,561,934,400
  5. Step 5: Solve for x
    x = 380,463,641,561,934,400/694,389,597.84
  6. Step 6: Final answer
    x = 547,910,917.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.