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Finding the Fourth Proportional to 427,892.22, 590,619.27 and 276,999.42

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Solution

The fourth proportional to 427,892.22, 590,619.27 and 276,999.42 is: 382,342.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,892.22 : 590,619.27 = 276,999.42 : x
  2. Step 2: Convert to fraction form
    427,892.22/590,619.27 = 276,999.42/x
  3. Step 3: Cross multiply
    427,892.22x = 590,619.27 × 276,999.42
  4. Step 4: Simplify right side
    427,892.22x = 163,601,195,230.82
  5. Step 5: Solve for x
    x = 163,601,195,230.82/427,892.22
  6. Step 6: Final answer
    x = 382,342.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.