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Finding the Fourth Proportional to 490,069.80, 733,722.30 and 476,245.80

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Solution

The fourth proportional to 490,069.80, 733,722.30 and 476,245.80 is: 713,025.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,069.80 : 733,722.30 = 476,245.80 : x
  2. Step 2: Convert to fraction form
    490,069.80/733,722.30 = 476,245.80/x
  3. Step 3: Cross multiply
    490,069.80x = 733,722.30 × 476,245.80
  4. Step 4: Simplify right side
    490,069.80x = 349,432,163,741.34
  5. Step 5: Solve for x
    x = 349,432,163,741.34/490,069.80
  6. Step 6: Final answer
    x = 713,025.30

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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.