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Finding the Fourth Proportional to 373,883,227.77, 515,978,607.29 and 225,251,137.56

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Solution

The fourth proportional to 373,883,227.77, 515,978,607.29 and 225,251,137.56 is: 310,858,470.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,883,227.77 : 515,978,607.29 = 225,251,137.56 : x
  2. Step 2: Convert to fraction form
    373,883,227.77/515,978,607.29 = 225,251,137.56/x
  3. Step 3: Cross multiply
    373,883,227.77x = 515,978,607.29 × 225,251,137.56
  4. Step 4: Simplify right side
    373,883,227.77x = 116,224,768,247,570,768
  5. Step 5: Solve for x
    x = 116,224,768,247,570,768/373,883,227.77
  6. Step 6: Final answer
    x = 310,858,470.28

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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.