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Finding the Fourth Proportional to 366,937.80, 550,406.70 and 317,074.20

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Solution

The fourth proportional to 366,937.80, 550,406.70 and 317,074.20 is: 475,611.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,937.80 : 550,406.70 = 317,074.20 : x
  2. Step 2: Convert to fraction form
    366,937.80/550,406.70 = 317,074.20/x
  3. Step 3: Cross multiply
    366,937.80x = 550,406.70 × 317,074.20
  4. Step 4: Simplify right side
    366,937.80x = 174,519,764,077.14
  5. Step 5: Solve for x
    x = 174,519,764,077.14/366,937.80
  6. Step 6: Final answer
    x = 475,611.30

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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.