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Finding the Fourth Proportional to 619,309.04, 854,656.44 and 347,437.44

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Solution

The fourth proportional to 619,309.04, 854,656.44 and 347,437.44 is: 479,469.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,309.04 : 854,656.44 = 347,437.44 : x
  2. Step 2: Convert to fraction form
    619,309.04/854,656.44 = 347,437.44/x
  3. Step 3: Cross multiply
    619,309.04x = 854,656.44 × 347,437.44
  4. Step 4: Simplify right side
    619,309.04x = 296,939,645,593.11
  5. Step 5: Solve for x
    x = 296,939,645,593.11/619,309.04
  6. Step 6: Final answer
    x = 479,469.26

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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.