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Finding the Fourth Proportional to 436,571.28, 654,857.07 and 196,404.66

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Solution

The fourth proportional to 436,571.28, 654,857.07 and 196,404.66 is: 294,607.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,571.28 : 654,857.07 = 196,404.66 : x
  2. Step 2: Convert to fraction form
    436,571.28/654,857.07 = 196,404.66/x
  3. Step 3: Cross multiply
    436,571.28x = 654,857.07 × 196,404.66
  4. Step 4: Simplify right side
    436,571.28x = 128,616,980,181.95
  5. Step 5: Solve for x
    x = 128,616,980,181.95/436,571.28
  6. Step 6: Final answer
    x = 294,607.06

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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.