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Finding the Fourth Proportional to 347,825,222.84, 479,995,978.11 and 191,190,664.46

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Solution

The fourth proportional to 347,825,222.84, 479,995,978.11 and 191,190,664.46 is: 263,841,561.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,825,222.84 : 479,995,978.11 = 191,190,664.46 : x
  2. Step 2: Convert to fraction form
    347,825,222.84/479,995,978.11 = 191,190,664.46/x
  3. Step 3: Cross multiply
    347,825,222.84x = 479,995,978.11 × 191,190,664.46
  4. Step 4: Simplify right side
    347,825,222.84x = 91,770,749,990,578,544
  5. Step 5: Solve for x
    x = 91,770,749,990,578,544/347,825,222.84
  6. Step 6: Final answer
    x = 263,841,561.70

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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.