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Finding the Fourth Proportional to 303,595, 418,961.34 and 169,459

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Solution

The fourth proportional to 303,595, 418,961.34 and 169,459 is: 233,853.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,595 : 418,961.34 = 169,459 : x
  2. Step 2: Convert to fraction form
    303,595/418,961.34 = 169,459/x
  3. Step 3: Cross multiply
    303,595x = 418,961.34 × 169,459
  4. Step 4: Simplify right side
    303,595x = 70,996,769,715.06
  5. Step 5: Solve for x
    x = 70,996,769,715.06/303,595
  6. Step 6: Final answer
    x = 233,853.55

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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.