Home / 1,640,268.51-2,263,571.96-915,116.34

Finding the Fourth Proportional to 1,640,268.51, 2,263,571.96 and 915,116.34

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Solution

The fourth proportional to 1,640,268.51, 2,263,571.96 and 915,116.34 is: 1,262,861.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,268.51 : 2,263,571.96 = 915,116.34 : x
  2. Step 2: Convert to fraction form
    1,640,268.51/2,263,571.96 = 915,116.34/x
  3. Step 3: Cross multiply
    1,640,268.51x = 2,263,571.96 × 915,116.34
  4. Step 4: Simplify right side
    1,640,268.51x = 2,071,431,687,361.83
  5. Step 5: Solve for x
    x = 2,071,431,687,361.83/1,640,268.51
  6. Step 6: Final answer
    x = 1,262,861.34

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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.