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Finding the Fourth Proportional to 619,257.01, 854,577.70 and 347,339.43

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Solution

The fourth proportional to 619,257.01, 854,577.70 and 347,339.43 is: 479,330.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,257.01 : 854,577.70 = 347,339.43 : x
  2. Step 2: Convert to fraction form
    619,257.01/854,577.70 = 347,339.43/x
  3. Step 3: Cross multiply
    619,257.01x = 854,577.70 × 347,339.43
  4. Step 4: Simplify right side
    619,257.01x = 296,828,532,255.42
  5. Step 5: Solve for x
    x = 296,828,532,255.42/619,257.01
  6. Step 6: Final answer
    x = 479,330.12

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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.