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Finding the Fourth Proportional to 453,276,366.80, 679,914,550.20 and 354,640,917.20

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Solution

The fourth proportional to 453,276,366.80, 679,914,550.20 and 354,640,917.20 is: 531,961,375.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,276,366.80 : 679,914,550.20 = 354,640,917.20 : x
  2. Step 2: Convert to fraction form
    453,276,366.80/679,914,550.20 = 354,640,917.20/x
  3. Step 3: Cross multiply
    453,276,366.80x = 679,914,550.20 × 354,640,917.20
  4. Step 4: Simplify right side
    453,276,366.80x = 241,125,519,700,553,440
  5. Step 5: Solve for x
    x = 241,125,519,700,553,440/453,276,366.80
  6. Step 6: Final answer
    x = 531,961,375.80

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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.