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Finding the Fourth Proportional to 911,672.60, 1,365,540.60 and 754,208.60

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Solution

The fourth proportional to 911,672.60, 1,365,540.60 and 754,208.60 is: 1,129,684.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,672.60 : 1,365,540.60 = 754,208.60 : x
  2. Step 2: Convert to fraction form
    911,672.60/1,365,540.60 = 754,208.60/x
  3. Step 3: Cross multiply
    911,672.60x = 1,365,540.60 × 754,208.60
  4. Step 4: Simplify right side
    911,672.60x = 1,029,902,464,169.16
  5. Step 5: Solve for x
    x = 1,029,902,464,169.16/911,672.60
  6. Step 6: Final answer
    x = 1,129,684.56

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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.