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Finding the Fourth Proportional to 619,274.65, 854,530.67 and 347,286.57

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Solution

The fourth proportional to 619,274.65, 854,530.67 and 347,286.57 is: 479,217.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,274.65 : 854,530.67 = 347,286.57 : x
  2. Step 2: Convert to fraction form
    619,274.65/854,530.67 = 347,286.57/x
  3. Step 3: Cross multiply
    619,274.65x = 854,530.67 × 347,286.57
  4. Step 4: Simplify right side
    619,274.65x = 296,767,026,212.32
  5. Step 5: Solve for x
    x = 296,767,026,212.32/619,274.65
  6. Step 6: Final answer
    x = 479,217.14

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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.