Home / 2,168,640.38-2,992,789.34-1,201,680.20

Finding the Fourth Proportional to 2,168,640.38, 2,992,789.34 and 1,201,680.20

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Solution

The fourth proportional to 2,168,640.38, 2,992,789.34 and 1,201,680.20 is: 1,658,355.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,168,640.38 : 2,992,789.34 = 1,201,680.20 : x
  2. Step 2: Convert to fraction form
    2,168,640.38/2,992,789.34 = 1,201,680.20/x
  3. Step 3: Cross multiply
    2,168,640.38x = 2,992,789.34 × 1,201,680.20
  4. Step 4: Simplify right side
    2,168,640.38x = 3,596,375,671,676.72
  5. Step 5: Solve for x
    x = 3,596,375,671,676.72/2,168,640.38
  6. Step 6: Final answer
    x = 1,658,355.03

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1.5x scale

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.