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Finding the Fourth Proportional to 396,025.92, 590,563.26 and 353,005.20

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Solution

The fourth proportional to 396,025.92, 590,563.26 and 353,005.20 is: 526,409.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,025.92 : 590,563.26 = 353,005.20 : x
  2. Step 2: Convert to fraction form
    396,025.92/590,563.26 = 353,005.20/x
  3. Step 3: Cross multiply
    396,025.92x = 590,563.26 × 353,005.20
  4. Step 4: Simplify right side
    396,025.92x = 208,471,901,708.95
  5. Step 5: Solve for x
    x = 208,471,901,708.95/396,025.92
  6. Step 6: Final answer
    x = 526,409.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.