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Finding the Fourth Proportional to 3,783,226.70, 5,220,978.85 and 2,064,441.53

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Solution

The fourth proportional to 3,783,226.70, 5,220,978.85 and 2,064,441.53 is: 2,848,998.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783,226.70 : 5,220,978.85 = 2,064,441.53 : x
  2. Step 2: Convert to fraction form
    3,783,226.70/5,220,978.85 = 2,064,441.53/x
  3. Step 3: Cross multiply
    3,783,226.70x = 5,220,978.85 × 2,064,441.53
  4. Step 4: Simplify right side
    3,783,226.70x = 10,778,405,565,191.64
  5. Step 5: Solve for x
    x = 10,778,405,565,191.64/3,783,226.70
  6. Step 6: Final answer
    x = 2,848,998.07

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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.