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Finding the Fourth Proportional to 619,371.26, 854,730.95 and 343,771.34

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Solution

The fourth proportional to 619,371.26, 854,730.95 and 343,771.34 is: 474,403.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,371.26 : 854,730.95 = 343,771.34 : x
  2. Step 2: Convert to fraction form
    619,371.26/854,730.95 = 343,771.34/x
  3. Step 3: Cross multiply
    619,371.26x = 854,730.95 × 343,771.34
  4. Step 4: Simplify right side
    619,371.26x = 293,832,004,770.04
  5. Step 5: Solve for x
    x = 293,832,004,770.04/619,371.26
  6. Step 6: Final answer
    x = 474,403.68

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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.