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Finding the Fourth Proportional to 303,431.66, 418,649.36 and 182,512.42

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Solution

The fourth proportional to 303,431.66, 418,649.36 and 182,512.42 is: 251,815.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,431.66 : 418,649.36 = 182,512.42 : x
  2. Step 2: Convert to fraction form
    303,431.66/418,649.36 = 182,512.42/x
  3. Step 3: Cross multiply
    303,431.66x = 418,649.36 × 182,512.42
  4. Step 4: Simplify right side
    303,431.66x = 76,408,707,825.05
  5. Step 5: Solve for x
    x = 76,408,707,825.05/303,431.66
  6. Step 6: Final answer
    x = 251,815.21

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1.5x scale

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.