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Finding the Fourth Proportional to 396,620.28, 594,804.06 and 130,319.01

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Solution

The fourth proportional to 396,620.28, 594,804.06 and 130,319.01 is: 195,437.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,620.28 : 594,804.06 = 130,319.01 : x
  2. Step 2: Convert to fraction form
    396,620.28/594,804.06 = 130,319.01/x
  3. Step 3: Cross multiply
    396,620.28x = 594,804.06 × 130,319.01
  4. Step 4: Simplify right side
    396,620.28x = 77,514,276,243.18
  5. Step 5: Solve for x
    x = 77,514,276,243.18/396,620.28
  6. Step 6: Final answer
    x = 195,437.00

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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.