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Finding the Fourth Proportional to 873,837,782.78, 1,206,183,517.94 and 695,548,709.51

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Solution

The fourth proportional to 873,837,782.78, 1,206,183,517.94 and 695,548,709.51 is: 960,085,963.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,837,782.78 : 1,206,183,517.94 = 695,548,709.51 : x
  2. Step 2: Convert to fraction form
    873,837,782.78/1,206,183,517.94 = 695,548,709.51/x
  3. Step 3: Cross multiply
    873,837,782.78x = 1,206,183,517.94 × 695,548,709.51
  4. Step 4: Simplify right side
    873,837,782.78x = 838,959,389,332,560,768
  5. Step 5: Solve for x
    x = 838,959,389,332,560,768/873,837,782.78
  6. Step 6: Final answer
    x = 960,085,963.17

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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.