Home / 1,640,268.22-2,263,571.54-915,116.04

Finding the Fourth Proportional to 1,640,268.22, 2,263,571.54 and 915,116.04

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Solution

The fourth proportional to 1,640,268.22, 2,263,571.54 and 915,116.04 is: 1,262,860.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,268.22 : 2,263,571.54 = 915,116.04 : x
  2. Step 2: Convert to fraction form
    1,640,268.22/2,263,571.54 = 915,116.04/x
  3. Step 3: Cross multiply
    1,640,268.22x = 2,263,571.54 × 915,116.04
  4. Step 4: Simplify right side
    1,640,268.22x = 2,071,430,623,941.50
  5. Step 5: Solve for x
    x = 2,071,430,623,941.50/1,640,268.22
  6. Step 6: Final answer
    x = 1,262,860.91

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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.