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Finding the Fourth Proportional to 2,752,573.86, 3,799,932.55 and 1,720,655.66

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Solution

The fourth proportional to 2,752,573.86, 3,799,932.55 and 1,720,655.66 is: 2,375,367.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,752,573.86 : 3,799,932.55 = 1,720,655.66 : x
  2. Step 2: Convert to fraction form
    2,752,573.86/3,799,932.55 = 1,720,655.66/x
  3. Step 3: Cross multiply
    2,752,573.86x = 3,799,932.55 × 1,720,655.66
  4. Step 4: Simplify right side
    2,752,573.86x = 6,538,375,454,973.93
  5. Step 5: Solve for x
    x = 6,538,375,454,973.93/2,752,573.86
  6. Step 6: Final answer
    x = 2,375,367.85

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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.