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Finding the Fourth Proportional to 392,794.28, 541,870.50 and 265,514.60

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Solution

The fourth proportional to 392,794.28, 541,870.50 and 265,514.60 is: 366,284.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,794.28 : 541,870.50 = 265,514.60 : x
  2. Step 2: Convert to fraction form
    392,794.28/541,870.50 = 265,514.60/x
  3. Step 3: Cross multiply
    392,794.28x = 541,870.50 × 265,514.60
  4. Step 4: Simplify right side
    392,794.28x = 143,874,529,059.30
  5. Step 5: Solve for x
    x = 143,874,529,059.30/392,794.28
  6. Step 6: Final answer
    x = 366,284.68

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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.