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Finding the Fourth Proportional to 619,271.56, 854,526.41 and 347,283.48

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Solution

The fourth proportional to 619,271.56, 854,526.41 and 347,283.48 is: 479,212.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,271.56 : 854,526.41 = 347,283.48 : x
  2. Step 2: Convert to fraction form
    619,271.56/854,526.41 = 347,283.48/x
  3. Step 3: Cross multiply
    619,271.56x = 854,526.41 × 347,283.48
  4. Step 4: Simplify right side
    619,271.56x = 296,762,906,284.92
  5. Step 5: Solve for x
    x = 296,762,906,284.92/619,271.56
  6. Step 6: Final answer
    x = 479,212.88

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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.