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Finding the Fourth Proportional to 619,594.26, 855,040.50 and 347,624.61

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Solution

The fourth proportional to 619,594.26, 855,040.50 and 347,624.61 is: 479,722.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,594.26 : 855,040.50 = 347,624.61 : x
  2. Step 2: Convert to fraction form
    619,594.26/855,040.50 = 347,624.61/x
  3. Step 3: Cross multiply
    619,594.26x = 855,040.50 × 347,624.61
  4. Step 4: Simplify right side
    619,594.26x = 297,233,120,346.71
  5. Step 5: Solve for x
    x = 297,233,120,346.71/619,594.26
  6. Step 6: Final answer
    x = 479,722.20

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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.