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Finding the Fourth Proportional to 702,469,937.70, 1,053,704,906.55 and 659,423,216.70

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Solution

The fourth proportional to 702,469,937.70, 1,053,704,906.55 and 659,423,216.70 is: 989,134,825.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,469,937.70 : 1,053,704,906.55 = 659,423,216.70 : x
  2. Step 2: Convert to fraction form
    702,469,937.70/1,053,704,906.55 = 659,423,216.70/x
  3. Step 3: Cross multiply
    702,469,937.70x = 1,053,704,906.55 × 659,423,216.70
  4. Step 4: Simplify right side
    702,469,937.70x = 694,837,478,929,773,952
  5. Step 5: Solve for x
    x = 694,837,478,929,773,952/702,469,937.70
  6. Step 6: Final answer
    x = 989,134,825.05

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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.