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Finding the Fourth Proportional to 456,408.92, 629,836.54 and 252,459.68

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Solution

The fourth proportional to 456,408.92, 629,836.54 and 252,459.68 is: 348,390.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,408.92 : 629,836.54 = 252,459.68 : x
  2. Step 2: Convert to fraction form
    456,408.92/629,836.54 = 252,459.68/x
  3. Step 3: Cross multiply
    456,408.92x = 629,836.54 × 252,459.68
  4. Step 4: Simplify right side
    456,408.92x = 159,008,328,756.27
  5. Step 5: Solve for x
    x = 159,008,328,756.27/456,408.92
  6. Step 6: Final answer
    x = 348,390.05

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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.