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Finding the Fourth Proportional to 283,740.44, 391,549.82 and 154,676.12

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Solution

The fourth proportional to 283,740.44, 391,549.82 and 154,676.12 is: 213,446.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,740.44 : 391,549.82 = 154,676.12 : x
  2. Step 2: Convert to fraction form
    283,740.44/391,549.82 = 154,676.12/x
  3. Step 3: Cross multiply
    283,740.44x = 391,549.82 × 154,676.12
  4. Step 4: Simplify right side
    283,740.44x = 60,563,404,213.17
  5. Step 5: Solve for x
    x = 60,563,404,213.17/283,740.44
  6. Step 6: Final answer
    x = 213,446.51

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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.