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Finding the Fourth Proportional to 619,447.44, 853,932.64 and 437,838.96

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Solution

The fourth proportional to 619,447.44, 853,932.64 and 437,838.96 is: 603,578.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,447.44 : 853,932.64 = 437,838.96 : x
  2. Step 2: Convert to fraction form
    619,447.44/853,932.64 = 437,838.96/x
  3. Step 3: Cross multiply
    619,447.44x = 853,932.64 × 437,838.96
  4. Step 4: Simplify right side
    619,447.44x = 373,884,979,007.65
  5. Step 5: Solve for x
    x = 373,884,979,007.65/619,447.44
  6. Step 6: Final answer
    x = 603,578.21

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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.