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Finding the Fourth Proportional to 366,968.80, 550,453.20 and 260,680.60

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Solution

The fourth proportional to 366,968.80, 550,453.20 and 260,680.60 is: 391,020.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,968.80 : 550,453.20 = 260,680.60 : x
  2. Step 2: Convert to fraction form
    366,968.80/550,453.20 = 260,680.60/x
  3. Step 3: Cross multiply
    366,968.80x = 550,453.20 × 260,680.60
  4. Step 4: Simplify right side
    366,968.80x = 143,492,470,447.92
  5. Step 5: Solve for x
    x = 143,492,470,447.92/366,968.80
  6. Step 6: Final answer
    x = 391,020.90

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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.