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Finding the Fourth Proportional to 421,777.26, 582,062.04 and 230,790.60

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Solution

The fourth proportional to 421,777.26, 582,062.04 and 230,790.60 is: 318,496.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,777.26 : 582,062.04 = 230,790.60 : x
  2. Step 2: Convert to fraction form
    421,777.26/582,062.04 = 230,790.60/x
  3. Step 3: Cross multiply
    421,777.26x = 582,062.04 × 230,790.60
  4. Step 4: Simplify right side
    421,777.26x = 134,334,447,448.82
  5. Step 5: Solve for x
    x = 134,334,447,448.82/421,777.26
  6. Step 6: Final answer
    x = 318,496.18

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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.