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Finding the Fourth Proportional to 620,586.96, 930,861.84 and 171,335.25

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Solution

The fourth proportional to 620,586.96, 930,861.84 and 171,335.25 is: 256,997.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,586.96 : 930,861.84 = 171,335.25 : x
  2. Step 2: Convert to fraction form
    620,586.96/930,861.84 = 171,335.25/x
  3. Step 3: Cross multiply
    620,586.96x = 930,861.84 × 171,335.25
  4. Step 4: Simplify right side
    620,586.96x = 159,489,446,071.86
  5. Step 5: Solve for x
    x = 159,489,446,071.86/620,586.96
  6. Step 6: Final answer
    x = 256,997.74

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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.