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Finding the Fourth Proportional to 325,601.20, 488,328.90 and 214,064.20

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Solution

The fourth proportional to 325,601.20, 488,328.90 and 214,064.20 is: 321,048.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,601.20 : 488,328.90 = 214,064.20 : x
  2. Step 2: Convert to fraction form
    325,601.20/488,328.90 = 214,064.20/x
  3. Step 3: Cross multiply
    325,601.20x = 488,328.90 × 214,064.20
  4. Step 4: Simplify right side
    325,601.20x = 104,533,735,315.38
  5. Step 5: Solve for x
    x = 104,533,735,315.38/325,601.20
  6. Step 6: Final answer
    x = 321,048.37

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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.