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Finding the Fourth Proportional to 530,786.86, 795,392.97 and 389,856.58

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Solution

The fourth proportional to 530,786.86, 795,392.97 and 389,856.58 is: 584,206.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,786.86 : 795,392.97 = 389,856.58 : x
  2. Step 2: Convert to fraction form
    530,786.86/795,392.97 = 389,856.58/x
  3. Step 3: Cross multiply
    530,786.86x = 795,392.97 × 389,856.58
  4. Step 4: Simplify right side
    530,786.86x = 310,089,179,589.80
  5. Step 5: Solve for x
    x = 310,089,179,589.80/530,786.86
  6. Step 6: Final answer
    x = 584,206.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.