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Finding the Fourth Proportional to 340,836.48, 470,604.72 and 220,048.32

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Solution

The fourth proportional to 340,836.48, 470,604.72 and 220,048.32 is: 303,828.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,836.48 : 470,604.72 = 220,048.32 : x
  2. Step 2: Convert to fraction form
    340,836.48/470,604.72 = 220,048.32/x
  3. Step 3: Cross multiply
    340,836.48x = 470,604.72 × 220,048.32
  4. Step 4: Simplify right side
    340,836.48x = 103,555,778,020.07
  5. Step 5: Solve for x
    x = 103,555,778,020.07/340,836.48
  6. Step 6: Final answer
    x = 303,828.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.