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Finding the Fourth Proportional to 662,329,523.80, 993,494,285.70 and 657,794,560.60

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Solution

The fourth proportional to 662,329,523.80, 993,494,285.70 and 657,794,560.60 is: 986,691,840.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,329,523.80 : 993,494,285.70 = 657,794,560.60 : x
  2. Step 2: Convert to fraction form
    662,329,523.80/993,494,285.70 = 657,794,560.60/x
  3. Step 3: Cross multiply
    662,329,523.80x = 993,494,285.70 × 657,794,560.60
  4. Step 4: Simplify right side
    662,329,523.80x = 653,515,137,120,642,432
  5. Step 5: Solve for x
    x = 653,515,137,120,642,432/662,329,523.80
  6. Step 6: Final answer
    x = 986,691,840.90

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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.