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Finding the Fourth Proportional to 597,990.20, 825,426.44 and 356,348.56

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Solution

The fourth proportional to 597,990.20, 825,426.44 and 356,348.56 is: 491,880.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    597,990.20 : 825,426.44 = 356,348.56 : x
  2. Step 2: Convert to fraction form
    597,990.20/825,426.44 = 356,348.56/x
  3. Step 3: Cross multiply
    597,990.20x = 825,426.44 × 356,348.56
  4. Step 4: Simplify right side
    597,990.20x = 294,139,523,279.93
  5. Step 5: Solve for x
    x = 294,139,523,279.93/597,990.20
  6. Step 6: Final answer
    x = 491,880.17

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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.