Home / 1,409,680.68-1,945,361.16-765,100.80

Finding the Fourth Proportional to 1,409,680.68, 1,945,361.16 and 765,100.80

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Solution

The fourth proportional to 1,409,680.68, 1,945,361.16 and 765,100.80 is: 1,055,840.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,680.68 : 1,945,361.16 = 765,100.80 : x
  2. Step 2: Convert to fraction form
    1,409,680.68/1,945,361.16 = 765,100.80/x
  3. Step 3: Cross multiply
    1,409,680.68x = 1,945,361.16 × 765,100.80
  4. Step 4: Simplify right side
    1,409,680.68x = 1,488,397,379,804.93
  5. Step 5: Solve for x
    x = 1,488,397,379,804.93/1,409,680.68
  6. Step 6: Final answer
    x = 1,055,840.09

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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.