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Finding the Fourth Proportional to 441,391.92, 660,811.24 and 395,811.60

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Solution

The fourth proportional to 441,391.92, 660,811.24 and 395,811.60 is: 592,572.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,391.92 : 660,811.24 = 395,811.60 : x
  2. Step 2: Convert to fraction form
    441,391.92/660,811.24 = 395,811.60/x
  3. Step 3: Cross multiply
    441,391.92x = 660,811.24 × 395,811.60
  4. Step 4: Simplify right side
    441,391.92x = 261,556,754,202.38
  5. Step 5: Solve for x
    x = 261,556,754,202.38/441,391.92
  6. Step 6: Final answer
    x = 592,572.59

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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.