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Finding the Fourth Proportional to 886,640.60, 1,327,992.60 and 729,176.60

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Solution

The fourth proportional to 886,640.60, 1,327,992.60 and 729,176.60 is: 1,092,146.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,640.60 : 1,327,992.60 = 729,176.60 : x
  2. Step 2: Convert to fraction form
    886,640.60/1,327,992.60 = 729,176.60/x
  3. Step 3: Cross multiply
    886,640.60x = 1,327,992.60 × 729,176.60
  4. Step 4: Simplify right side
    886,640.60x = 968,341,128,893.16
  5. Step 5: Solve for x
    x = 968,341,128,893.16/886,640.60
  6. Step 6: Final answer
    x = 1,092,146.16

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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.