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Finding the Fourth Proportional to 490,130.99, 734,131.82 and 236,880.35

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Solution

The fourth proportional to 490,130.99, 734,131.82 and 236,880.35 is: 354,805.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,130.99 : 734,131.82 = 236,880.35 : x
  2. Step 2: Convert to fraction form
    490,130.99/734,131.82 = 236,880.35/x
  3. Step 3: Cross multiply
    490,130.99x = 734,131.82 × 236,880.35
  4. Step 4: Simplify right side
    490,130.99x = 173,901,397,612.68
  5. Step 5: Solve for x
    x = 173,901,397,612.68/490,130.99
  6. Step 6: Final answer
    x = 354,805.97

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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.