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Finding the Fourth Proportional to 619,273.52, 854,529.13 and 347,285.45

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Solution

The fourth proportional to 619,273.52, 854,529.13 and 347,285.45 is: 479,215.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,273.52 : 854,529.13 = 347,285.45 : x
  2. Step 2: Convert to fraction form
    619,273.52/854,529.13 = 347,285.45/x
  3. Step 3: Cross multiply
    619,273.52x = 854,529.13 × 347,285.45
  4. Step 4: Simplify right side
    619,273.52x = 296,765,533,450.16
  5. Step 5: Solve for x
    x = 296,765,533,450.16/619,273.52
  6. Step 6: Final answer
    x = 479,215.60

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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.