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Finding the Fourth Proportional to 620,584.87, 929,143.00 and 335,253.20

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Solution

The fourth proportional to 620,584.87, 929,143.00 and 335,253.20 is: 501,942.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,584.87 : 929,143.00 = 335,253.20 : x
  2. Step 2: Convert to fraction form
    620,584.87/929,143.00 = 335,253.20/x
  3. Step 3: Cross multiply
    620,584.87x = 929,143.00 × 335,253.20
  4. Step 4: Simplify right side
    620,584.87x = 311,498,160,210.31
  5. Step 5: Solve for x
    x = 311,498,160,210.31/620,584.87
  6. Step 6: Final answer
    x = 501,942.88

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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.