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Finding the Third Proportional to 861,557.06 and 1,879,780.78

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Solution

The third proportional to 861,557.06 and 1,879,780.78 is: 4,101,383.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,557.06 : 1,879,780.78 = 1,879,780.78 : x
  2. Step 2: Convert to fraction form
    861,557.06/1,879,780.78 = 1,879,780.78/x
  3. Step 3: Cross multiply
    861,557.06x = 1,879,780.78 × 1,879,780.78
  4. Step 4: Simplify right side
    861,557.06x = 3,533,575,785,556.86
  5. Step 5: Solve for x
    x = 3,533,575,785,556.86/861,557.06
  6. Step 6: Final answer
    x = 4,101,383.34

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.