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Finding the Fourth Proportional to 774,876,907.17, 1,068,672,261.41 and 654,763,343.37

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Solution

The fourth proportional to 774,876,907.17, 1,068,672,261.41 and 654,763,343.37 is: 903,017,519.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,876,907.17 : 1,068,672,261.41 = 654,763,343.37 : x
  2. Step 2: Convert to fraction form
    774,876,907.17/1,068,672,261.41 = 654,763,343.37/x
  3. Step 3: Cross multiply
    774,876,907.17x = 1,068,672,261.41 × 654,763,343.37
  4. Step 4: Simplify right side
    774,876,907.17x = 699,727,422,842,807,680
  5. Step 5: Solve for x
    x = 699,727,422,842,807,680/774,876,907.17
  6. Step 6: Final answer
    x = 903,017,519.77

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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.