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Finding the Fourth Proportional to 456,021.73, 629,372.50 and 262,425.45

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Solution

The fourth proportional to 456,021.73, 629,372.50 and 262,425.45 is: 362,183.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,021.73 : 629,372.50 = 262,425.45 : x
  2. Step 2: Convert to fraction form
    456,021.73/629,372.50 = 262,425.45/x
  3. Step 3: Cross multiply
    456,021.73x = 629,372.50 × 262,425.45
  4. Step 4: Simplify right side
    456,021.73x = 165,163,363,234.21
  5. Step 5: Solve for x
    x = 165,163,363,234.21/456,021.73
  6. Step 6: Final answer
    x = 362,183.10

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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.