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Finding the Fourth Proportional to 313,824.40, 470,736.60 and 313,824.40

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Solution

The fourth proportional to 313,824.40, 470,736.60 and 313,824.40 is: 470,736.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,824.40 : 470,736.60 = 313,824.40 : x
  2. Step 2: Convert to fraction form
    313,824.40/470,736.60 = 313,824.40/x
  3. Step 3: Cross multiply
    313,824.40x = 470,736.60 × 313,824.40
  4. Step 4: Simplify right side
    313,824.40x = 147,728,631,053.04
  5. Step 5: Solve for x
    x = 147,728,631,053.04/313,824.40
  6. Step 6: Final answer
    x = 470,736.60

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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.