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Finding the Fourth Proportional to 453,670,403.85, 680,505,605.78 and 453,670,403.85

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Solution

The fourth proportional to 453,670,403.85, 680,505,605.78 and 453,670,403.85 is: 680,505,605.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,670,403.85 : 680,505,605.78 = 453,670,403.85 : x
  2. Step 2: Convert to fraction form
    453,670,403.85/680,505,605.78 = 453,670,403.85/x
  3. Step 3: Cross multiply
    453,670,403.85x = 680,505,605.78 × 453,670,403.85
  4. Step 4: Simplify right side
    453,670,403.85x = 308,725,252,994,133,120
  5. Step 5: Solve for x
    x = 308,725,252,994,133,120/453,670,403.85
  6. Step 6: Final answer
    x = 680,505,605.78

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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.