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Finding the Fourth Proportional to 1,267,739.51, 1,749,494.30 and 694,767.38

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Solution

The fourth proportional to 1,267,739.51, 1,749,494.30 and 694,767.38 is: 958,786.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,739.51 : 1,749,494.30 = 694,767.38 : x
  2. Step 2: Convert to fraction form
    1,267,739.51/1,749,494.30 = 694,767.38/x
  3. Step 3: Cross multiply
    1,267,739.51x = 1,749,494.30 × 694,767.38
  4. Step 4: Simplify right side
    1,267,739.51x = 1,215,491,558,914.63
  5. Step 5: Solve for x
    x = 1,215,491,558,914.63/1,267,739.51
  6. Step 6: Final answer
    x = 958,786.53

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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.