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Finding the Fourth Proportional to 419,925.87, 579,503.97 and 228,942.45

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Solution

The fourth proportional to 419,925.87, 579,503.97 and 228,942.45 is: 315,944.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,925.87 : 579,503.97 = 228,942.45 : x
  2. Step 2: Convert to fraction form
    419,925.87/579,503.97 = 228,942.45/x
  3. Step 3: Cross multiply
    419,925.87x = 579,503.97 × 228,942.45
  4. Step 4: Simplify right side
    419,925.87x = 132,673,058,676.53
  5. Step 5: Solve for x
    x = 132,673,058,676.53/419,925.87
  6. Step 6: Final answer
    x = 315,944.00

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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.