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Finding the Fourth Proportional to 283,614.68, 391,383.23 and 154,554.28

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Solution

The fourth proportional to 283,614.68, 391,383.23 and 154,554.28 is: 213,282.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,614.68 : 391,383.23 = 154,554.28 : x
  2. Step 2: Convert to fraction form
    283,614.68/391,383.23 = 154,554.28/x
  3. Step 3: Cross multiply
    283,614.68x = 391,383.23 × 154,554.28
  4. Step 4: Simplify right side
    283,614.68x = 60,489,951,565.49
  5. Step 5: Solve for x
    x = 60,489,951,565.49/283,614.68
  6. Step 6: Final answer
    x = 213,282.16

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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.