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Finding the Fourth Proportional to 494,482.20, 741,723.30 and 489,233.40

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Solution

The fourth proportional to 494,482.20, 741,723.30 and 489,233.40 is: 733,850.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,482.20 : 741,723.30 = 489,233.40 : x
  2. Step 2: Convert to fraction form
    494,482.20/741,723.30 = 489,233.40/x
  3. Step 3: Cross multiply
    494,482.20x = 741,723.30 × 489,233.40
  4. Step 4: Simplify right side
    494,482.20x = 362,875,811,918.22
  5. Step 5: Solve for x
    x = 362,875,811,918.22/494,482.20
  6. Step 6: Final answer
    x = 733,850.10

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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.