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Finding the Fourth Proportional to 489,268.70, 733,903.06 and 329,836.40

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Solution

The fourth proportional to 489,268.70, 733,903.06 and 329,836.40 is: 494,754.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,268.70 : 733,903.06 = 329,836.40 : x
  2. Step 2: Convert to fraction form
    489,268.70/733,903.06 = 329,836.40/x
  3. Step 3: Cross multiply
    489,268.70x = 733,903.06 × 329,836.40
  4. Step 4: Simplify right side
    489,268.70x = 242,067,943,259.38
  5. Step 5: Solve for x
    x = 242,067,943,259.38/489,268.70
  6. Step 6: Final answer
    x = 494,754.61

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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.