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Finding the Fourth Proportional to 4,917,394.86, 7,375,524.89 and 1,322,879.33

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Solution

The fourth proportional to 4,917,394.86, 7,375,524.89 and 1,322,879.33 is: 1,984,166.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,917,394.86 : 7,375,524.89 = 1,322,879.33 : x
  2. Step 2: Convert to fraction form
    4,917,394.86/7,375,524.89 = 1,322,879.33/x
  3. Step 3: Cross multiply
    4,917,394.86x = 7,375,524.89 × 1,322,879.33
  4. Step 4: Simplify right side
    4,917,394.86x = 9,756,929,381,389.50
  5. Step 5: Solve for x
    x = 9,756,929,381,389.50/4,917,394.86
  6. Step 6: Final answer
    x = 1,984,166.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.