Home / 1,640,034.72-2,263,251.60-914,864.40

Finding the Fourth Proportional to 1,640,034.72, 2,263,251.60 and 914,864.40

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Solution

The fourth proportional to 1,640,034.72, 2,263,251.60 and 914,864.40 is: 1,262,514.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,034.72 : 2,263,251.60 = 914,864.40 : x
  2. Step 2: Convert to fraction form
    1,640,034.72/2,263,251.60 = 914,864.40/x
  3. Step 3: Cross multiply
    1,640,034.72x = 2,263,251.60 × 914,864.40
  4. Step 4: Simplify right side
    1,640,034.72x = 2,070,568,317,083.04
  5. Step 5: Solve for x
    x = 2,070,568,317,083.04/1,640,034.72
  6. Step 6: Final answer
    x = 1,262,514.93

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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.