Home / 868,010.12-1,296,735.80-561,910.61

Finding the Fourth Proportional to 868,010.12, 1,296,735.80 and 561,910.61

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Solution

The fourth proportional to 868,010.12, 1,296,735.80 and 561,910.61 is: 839,448.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,010.12 : 1,296,735.80 = 561,910.61 : x
  2. Step 2: Convert to fraction form
    868,010.12/1,296,735.80 = 561,910.61/x
  3. Step 3: Cross multiply
    868,010.12x = 1,296,735.80 × 561,910.61
  4. Step 4: Simplify right side
    868,010.12x = 728,649,597,903.16
  5. Step 5: Solve for x
    x = 728,649,597,903.16/868,010.12
  6. Step 6: Final answer
    x = 839,448.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.