Home / 1,409,716.36-1,945,410.71-765,136.79

Finding the Fourth Proportional to 1,409,716.36, 1,945,410.71 and 765,136.79

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Solution

The fourth proportional to 1,409,716.36, 1,945,410.71 and 765,136.79 is: 1,055,889.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,716.36 : 1,945,410.71 = 765,136.79 : x
  2. Step 2: Convert to fraction form
    1,409,716.36/1,945,410.71 = 765,136.79/x
  3. Step 3: Cross multiply
    1,409,716.36x = 1,945,410.71 × 765,136.79
  4. Step 4: Simplify right side
    1,409,716.36x = 1,488,505,305,881.02
  5. Step 5: Solve for x
    x = 1,488,505,305,881.02/1,409,716.36
  6. Step 6: Final answer
    x = 1,055,889.93

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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.