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Finding the Fourth Proportional to 6,453,645.60, 8,905,692.78 and 3,552,469.80

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Solution

The fourth proportional to 6,453,645.60, 8,905,692.78 and 3,552,469.80 is: 4,902,222.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,453,645.60 : 8,905,692.78 = 3,552,469.80 : x
  2. Step 2: Convert to fraction form
    6,453,645.60/8,905,692.78 = 3,552,469.80/x
  3. Step 3: Cross multiply
    6,453,645.60x = 8,905,692.78 × 3,552,469.80
  4. Step 4: Simplify right side
    6,453,645.60x = 31,637,204,649,028.04
  5. Step 5: Solve for x
    x = 31,637,204,649,028.04/6,453,645.60
  6. Step 6: Final answer
    x = 4,902,222.19

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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.