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Finding the Fourth Proportional to 911,698.60, 1,365,579.60 and 754,234.60

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Solution

The fourth proportional to 911,698.60, 1,365,579.60 and 754,234.60 is: 1,129,723.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,698.60 : 1,365,579.60 = 754,234.60 : x
  2. Step 2: Convert to fraction form
    911,698.60/1,365,579.60 = 754,234.60/x
  3. Step 3: Cross multiply
    911,698.60x = 1,365,579.60 × 754,234.60
  4. Step 4: Simplify right side
    911,698.60x = 1,029,967,383,374.16
  5. Step 5: Solve for x
    x = 1,029,967,383,374.16/911,698.60
  6. Step 6: Final answer
    x = 1,129,723.55

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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.