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Finding the Fourth Proportional to 424,620.56, 585,992.51 and 243,367.47

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Solution

The fourth proportional to 424,620.56, 585,992.51 and 243,367.47 is: 335,856.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,620.56 : 585,992.51 = 243,367.47 : x
  2. Step 2: Convert to fraction form
    424,620.56/585,992.51 = 243,367.47/x
  3. Step 3: Cross multiply
    424,620.56x = 585,992.51 × 243,367.47
  4. Step 4: Simplify right side
    424,620.56x = 142,611,513,380.81
  5. Step 5: Solve for x
    x = 142,611,513,380.81/424,620.56
  6. Step 6: Final answer
    x = 335,856.36

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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.