Home / 1,640,149.09-2,263,406.72-914,996.81

Finding the Fourth Proportional to 1,640,149.09, 2,263,406.72 and 914,996.81

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Solution

The fourth proportional to 1,640,149.09, 2,263,406.72 and 914,996.81 is: 1,262,696.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,149.09 : 2,263,406.72 = 914,996.81 : x
  2. Step 2: Convert to fraction form
    1,640,149.09/2,263,406.72 = 914,996.81/x
  3. Step 3: Cross multiply
    1,640,149.09x = 2,263,406.72 × 914,996.81
  4. Step 4: Simplify right side
    1,640,149.09x = 2,071,009,919,503.02
  5. Step 5: Solve for x
    x = 2,071,009,919,503.02/1,640,149.09
  6. Step 6: Final answer
    x = 1,262,696.14

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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.