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Finding the Fourth Proportional to 613,327.34, 919,657.26 and 213,861.26

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Solution

The fourth proportional to 613,327.34, 919,657.26 and 213,861.26 is: 320,675.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,327.34 : 919,657.26 = 213,861.26 : x
  2. Step 2: Convert to fraction form
    613,327.34/919,657.26 = 213,861.26/x
  3. Step 3: Cross multiply
    613,327.34x = 919,657.26 × 213,861.26
  4. Step 4: Simplify right side
    613,327.34x = 196,679,060,391.75
  5. Step 5: Solve for x
    x = 196,679,060,391.75/613,327.34
  6. Step 6: Final answer
    x = 320,675.51

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1.5x scale

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.