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Finding the Fourth Proportional to 5,672,408.54, 7,828,200.55 and 3,192,403.79

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Solution

The fourth proportional to 5,672,408.54, 7,828,200.55 and 3,192,403.79 is: 4,405,673.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,672,408.54 : 7,828,200.55 = 3,192,403.79 : x
  2. Step 2: Convert to fraction form
    5,672,408.54/7,828,200.55 = 3,192,403.79/x
  3. Step 3: Cross multiply
    5,672,408.54x = 7,828,200.55 × 3,192,403.79
  4. Step 4: Simplify right side
    5,672,408.54x = 24,990,777,128,261.09
  5. Step 5: Solve for x
    x = 24,990,777,128,261.09/5,672,408.54
  6. Step 6: Final answer
    x = 4,405,673.00

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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.