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Finding the Third Proportional to 369,220,872 and 787,860,048

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Solution

The third proportional to 369,220,872 and 787,860,048 is: 1,681,171,088.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,220,872 : 787,860,048 = 787,860,048 : x
  2. Step 2: Convert to fraction form
    369,220,872/787,860,048 = 787,860,048/x
  3. Step 3: Cross multiply
    369,220,872x = 787,860,048 × 787,860,048
  4. Step 4: Simplify right side
    369,220,872x = 620,723,455,234,562,304
  5. Step 5: Solve for x
    x = 620,723,455,234,562,304/369,220,872
  6. Step 6: Final answer
    x = 1,681,171,088.38

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.