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Finding the Fourth Proportional to 2,786,677.01, 4,179,978.25 and 764,921.26

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Solution

The fourth proportional to 2,786,677.01, 4,179,978.25 and 764,921.26 is: 1,147,371.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786,677.01 : 4,179,978.25 = 764,921.26 : x
  2. Step 2: Convert to fraction form
    2,786,677.01/4,179,978.25 = 764,921.26/x
  3. Step 3: Cross multiply
    2,786,677.01x = 4,179,978.25 × 764,921.26
  4. Step 4: Simplify right side
    2,786,677.01x = 3,197,354,229,762.60
  5. Step 5: Solve for x
    x = 3,197,354,229,762.60/2,786,677.01
  6. Step 6: Final answer
    x = 1,147,371.66

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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.