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Finding the Fourth Proportional to 609,191,700.76, 839,872,586.46 and 484,161,396.76

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Solution

The fourth proportional to 609,191,700.76, 839,872,586.46 and 484,161,396.76 is: 667,497,413.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,191,700.76 : 839,872,586.46 = 484,161,396.76 : x
  2. Step 2: Convert to fraction form
    609,191,700.76/839,872,586.46 = 484,161,396.76/x
  3. Step 3: Cross multiply
    609,191,700.76x = 839,872,586.46 × 484,161,396.76
  4. Step 4: Simplify right side
    609,191,700.76x = 406,633,884,560,907,456
  5. Step 5: Solve for x
    x = 406,633,884,560,907,456/609,191,700.76
  6. Step 6: Final answer
    x = 667,497,413.46

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.