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Finding the Fourth Proportional to 5,642,648.00, 7,789,237.11 and 3,809,588.43

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Solution

The fourth proportional to 5,642,648.00, 7,789,237.11 and 3,809,588.43 is: 5,258,840.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,642,648.00 : 7,789,237.11 = 3,809,588.43 : x
  2. Step 2: Convert to fraction form
    5,642,648.00/7,789,237.11 = 3,809,588.43/x
  3. Step 3: Cross multiply
    5,642,648.00x = 7,789,237.11 × 3,809,588.43
  4. Step 4: Simplify right side
    5,642,648.00x = 29,673,787,572,782.64
  5. Step 5: Solve for x
    x = 29,673,787,572,782.64/5,642,648.00
  6. Step 6: Final answer
    x = 5,258,840.81

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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.