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Finding the Fourth Proportional to 619,058.46, 854,336.25 and 347,213.55

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Solution

The fourth proportional to 619,058.46, 854,336.25 and 347,213.55 is: 479,174.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,058.46 : 854,336.25 = 347,213.55 : x
  2. Step 2: Convert to fraction form
    619,058.46/854,336.25 = 347,213.55/x
  3. Step 3: Cross multiply
    619,058.46x = 854,336.25 × 347,213.55
  4. Step 4: Simplify right side
    619,058.46x = 296,637,122,256.19
  5. Step 5: Solve for x
    x = 296,637,122,256.19/619,058.46
  6. Step 6: Final answer
    x = 479,174.65

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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.