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Finding the Fourth Proportional to 573,794,604.90, 860,691,878.55 and 545,915,223.78

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Solution

The fourth proportional to 573,794,604.90, 860,691,878.55 and 545,915,223.78 is: 818,872,808.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,794,604.90 : 860,691,878.55 = 545,915,223.78 : x
  2. Step 2: Convert to fraction form
    573,794,604.90/860,691,878.55 = 545,915,223.78/x
  3. Step 3: Cross multiply
    573,794,604.90x = 860,691,878.55 × 545,915,223.78
  4. Step 4: Simplify right side
    573,794,604.90x = 469,864,799,484,251,776
  5. Step 5: Solve for x
    x = 469,864,799,484,251,776/573,794,604.90
  6. Step 6: Final answer
    x = 818,872,808.27

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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.