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Finding the Fourth Proportional to 436,912.54, 602,795.11 and 356,201.30

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Solution

The fourth proportional to 436,912.54, 602,795.11 and 356,201.30 is: 491,440.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,912.54 : 602,795.11 = 356,201.30 : x
  2. Step 2: Convert to fraction form
    436,912.54/602,795.11 = 356,201.30/x
  3. Step 3: Cross multiply
    436,912.54x = 602,795.11 × 356,201.30
  4. Step 4: Simplify right side
    436,912.54x = 214,716,401,815.64
  5. Step 5: Solve for x
    x = 214,716,401,815.64/436,912.54
  6. Step 6: Final answer
    x = 491,440.24

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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.