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Finding the Fourth Proportional to 529,327.70, 793,986.27 and 213,780.26

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Solution

The fourth proportional to 529,327.70, 793,986.27 and 213,780.26 is: 320,668.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,327.70 : 793,986.27 = 213,780.26 : x
  2. Step 2: Convert to fraction form
    529,327.70/793,986.27 = 213,780.26/x
  3. Step 3: Cross multiply
    529,327.70x = 793,986.27 × 213,780.26
  4. Step 4: Simplify right side
    529,327.70x = 169,738,591,237.03
  5. Step 5: Solve for x
    x = 169,738,591,237.03/529,327.70
  6. Step 6: Final answer
    x = 320,668.26

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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.