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Finding the Fourth Proportional to 694,782,059.68, 958,815,901.84 and 377,255,687.64

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Solution

The fourth proportional to 694,782,059.68, 958,815,901.84 and 377,255,687.64 is: 520,621,894.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,782,059.68 : 958,815,901.84 = 377,255,687.64 : x
  2. Step 2: Convert to fraction form
    694,782,059.68/958,815,901.84 = 377,255,687.64/x
  3. Step 3: Cross multiply
    694,782,059.68x = 958,815,901.84 × 377,255,687.64
  4. Step 4: Simplify right side
    694,782,059.68x = 361,718,752,367,932,480
  5. Step 5: Solve for x
    x = 361,718,752,367,932,480/694,782,059.68
  6. Step 6: Final answer
    x = 520,621,894.78

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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.