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Finding the Fourth Proportional to 319,193.38, 440,489.81 and 175,958.54

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Solution

The fourth proportional to 319,193.38, 440,489.81 and 175,958.54 is: 242,824.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,193.38 : 440,489.81 = 175,958.54 : x
  2. Step 2: Convert to fraction form
    319,193.38/440,489.81 = 175,958.54/x
  3. Step 3: Cross multiply
    319,193.38x = 440,489.81 × 175,958.54
  4. Step 4: Simplify right side
    319,193.38x = 77,507,940,770.24
  5. Step 5: Solve for x
    x = 77,507,940,770.24/319,193.38
  6. Step 6: Final answer
    x = 242,824.40

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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.