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Finding the Fourth Proportional to 345,982.40, 519,751.20 and 336,651.20

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Solution

The fourth proportional to 345,982.40, 519,751.20 and 336,651.20 is: 505,733.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,982.40 : 519,751.20 = 336,651.20 : x
  2. Step 2: Convert to fraction form
    345,982.40/519,751.20 = 336,651.20/x
  3. Step 3: Cross multiply
    345,982.40x = 519,751.20 × 336,651.20
  4. Step 4: Simplify right side
    345,982.40x = 174,974,865,181.44
  5. Step 5: Solve for x
    x = 174,974,865,181.44/345,982.40
  6. Step 6: Final answer
    x = 505,733.43

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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.