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Finding the Fourth Proportional to 554,844,314.86, 765,679,058.82 and 300,519,344.25

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Solution

The fourth proportional to 554,844,314.86, 765,679,058.82 and 300,519,344.25 is: 414,713,393.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,844,314.86 : 765,679,058.82 = 300,519,344.25 : x
  2. Step 2: Convert to fraction form
    554,844,314.86/765,679,058.82 = 300,519,344.25/x
  3. Step 3: Cross multiply
    554,844,314.86x = 765,679,058.82 × 300,519,344.25
  4. Step 4: Simplify right side
    554,844,314.86x = 230,101,368,659,794,016
  5. Step 5: Solve for x
    x = 230,101,368,659,794,016/554,844,314.86
  6. Step 6: Final answer
    x = 414,713,393.47

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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.