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Finding the Fourth Proportional to 655,538,861.70, 983,308,292.55 and 448,914,600.90

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Solution

The fourth proportional to 655,538,861.70, 983,308,292.55 and 448,914,600.90 is: 673,371,901.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,538,861.70 : 983,308,292.55 = 448,914,600.90 : x
  2. Step 2: Convert to fraction form
    655,538,861.70/983,308,292.55 = 448,914,600.90/x
  3. Step 3: Cross multiply
    655,538,861.70x = 983,308,292.55 × 448,914,600.90
  4. Step 4: Simplify right side
    655,538,861.70x = 441,421,449,711,743,680
  5. Step 5: Solve for x
    x = 441,421,449,711,743,680/655,538,861.70
  6. Step 6: Final answer
    x = 673,371,901.35

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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.