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Finding the Fourth Proportional to 4,788,907.60, 7,183,361.40 and 3,003,149.20

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Solution

The fourth proportional to 4,788,907.60, 7,183,361.40 and 3,003,149.20 is: 4,504,723.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,788,907.60 : 7,183,361.40 = 3,003,149.20 : x
  2. Step 2: Convert to fraction form
    4,788,907.60/7,183,361.40 = 3,003,149.20/x
  3. Step 3: Cross multiply
    4,788,907.60x = 7,183,361.40 × 3,003,149.20
  4. Step 4: Simplify right side
    4,788,907.60x = 21,572,706,041,720.88
  5. Step 5: Solve for x
    x = 21,572,706,041,720.88/4,788,907.60
  6. Step 6: Final answer
    x = 4,504,723.80

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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.