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Finding the Fourth Proportional to 395,993.38, 593,995.04 and 261,915.70

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Solution

The fourth proportional to 395,993.38, 593,995.04 and 261,915.70 is: 392,876.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,993.38 : 593,995.04 = 261,915.70 : x
  2. Step 2: Convert to fraction form
    395,993.38/593,995.04 = 261,915.70/x
  3. Step 3: Cross multiply
    395,993.38x = 593,995.04 × 261,915.70
  4. Step 4: Simplify right side
    395,993.38x = 155,576,626,698.13
  5. Step 5: Solve for x
    x = 155,576,626,698.13/395,993.38
  6. Step 6: Final answer
    x = 392,876.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.