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Finding the Fourth Proportional to 550,381.01, 825,832.42 and 265,912.11

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Solution

The fourth proportional to 550,381.01, 825,832.42 and 265,912.11 is: 398,994.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,381.01 : 825,832.42 = 265,912.11 : x
  2. Step 2: Convert to fraction form
    550,381.01/825,832.42 = 265,912.11/x
  3. Step 3: Cross multiply
    550,381.01x = 825,832.42 × 265,912.11
  4. Step 4: Simplify right side
    550,381.01x = 219,598,843,740.70
  5. Step 5: Solve for x
    x = 219,598,843,740.70/550,381.01
  6. Step 6: Final answer
    x = 398,994.22

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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.