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Finding the Fourth Proportional to 325,583.44, 487,587.78 and 281,493.52

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Solution

The fourth proportional to 325,583.44, 487,587.78 and 281,493.52 is: 421,559.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,583.44 : 487,587.78 = 281,493.52 : x
  2. Step 2: Convert to fraction form
    325,583.44/487,587.78 = 281,493.52/x
  3. Step 3: Cross multiply
    325,583.44x = 487,587.78 × 281,493.52
  4. Step 4: Simplify right side
    325,583.44x = 137,252,800,501.19
  5. Step 5: Solve for x
    x = 137,252,800,501.19/325,583.44
  6. Step 6: Final answer
    x = 421,559.53

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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.