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Finding the Fourth Proportional to 6,363,367.78, 8,781,632.34 and 3,462,945.70

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Solution

The fourth proportional to 6,363,367.78, 8,781,632.34 and 3,462,945.70 is: 4,778,965.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,363,367.78 : 8,781,632.34 = 3,462,945.70 : x
  2. Step 2: Convert to fraction form
    6,363,367.78/8,781,632.34 = 3,462,945.70/x
  3. Step 3: Cross multiply
    6,363,367.78x = 8,781,632.34 × 3,462,945.70
  4. Step 4: Simplify right side
    6,363,367.78x = 30,410,315,950,783.94
  5. Step 5: Solve for x
    x = 30,410,315,950,783.94/6,363,367.78
  6. Step 6: Final answer
    x = 4,778,965.64

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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.