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Finding the Fourth Proportional to 303,907.70, 455,205.45 and 264,541.70

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Solution

The fourth proportional to 303,907.70, 455,205.45 and 264,541.70 is: 396,241.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,907.70 : 455,205.45 = 264,541.70 : x
  2. Step 2: Convert to fraction form
    303,907.70/455,205.45 = 264,541.70/x
  3. Step 3: Cross multiply
    303,907.70x = 455,205.45 × 264,541.70
  4. Step 4: Simplify right side
    303,907.70x = 120,420,823,592.27
  5. Step 5: Solve for x
    x = 120,420,823,592.27/303,907.70
  6. Step 6: Final answer
    x = 396,241.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.