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Finding the Fourth Proportional to 647,524,163.80, 971,286,245.70 and 604,158,578.20

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Solution

The fourth proportional to 647,524,163.80, 971,286,245.70 and 604,158,578.20 is: 906,237,867.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,524,163.80 : 971,286,245.70 = 604,158,578.20 : x
  2. Step 2: Convert to fraction form
    647,524,163.80/971,286,245.70 = 604,158,578.20/x
  3. Step 3: Cross multiply
    647,524,163.80x = 971,286,245.70 × 604,158,578.20
  4. Step 4: Simplify right side
    647,524,163.80x = 586,810,917,227,328,000
  5. Step 5: Solve for x
    x = 586,810,917,227,328,000/647,524,163.80
  6. Step 6: Final answer
    x = 906,237,867.30

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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.