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Finding the Fourth Proportional to 322,408.40, 451,740.40 and 322,408.40

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Solution

The fourth proportional to 322,408.40, 451,740.40 and 322,408.40 is: 451,740.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,408.40 : 451,740.40 = 322,408.40 : x
  2. Step 2: Convert to fraction form
    322,408.40/451,740.40 = 322,408.40/x
  3. Step 3: Cross multiply
    322,408.40x = 451,740.40 × 322,408.40
  4. Step 4: Simplify right side
    322,408.40x = 145,644,899,579.36
  5. Step 5: Solve for x
    x = 145,644,899,579.36/322,408.40
  6. Step 6: Final answer
    x = 451,740.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.