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Finding the Fourth Proportional to 1,181,887.67, 1,769,990.67 and 674,913.74

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Solution

The fourth proportional to 1,181,887.67, 1,769,990.67 and 674,913.74 is: 1,010,748.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181,887.67 : 1,769,990.67 = 674,913.74 : x
  2. Step 2: Convert to fraction form
    1,181,887.67/1,769,990.67 = 674,913.74/x
  3. Step 3: Cross multiply
    1,181,887.67x = 1,769,990.67 × 674,913.74
  4. Step 4: Simplify right side
    1,181,887.67x = 1,194,591,014,004.85
  5. Step 5: Solve for x
    x = 1,194,591,014,004.85/1,181,887.67
  6. Step 6: Final answer
    x = 1,010,748.35

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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.