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Finding the Fourth Proportional to 338,342.20, 507,147.06 and 220,098.04

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Solution

The fourth proportional to 338,342.20, 507,147.06 and 220,098.04 is: 329,908.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,342.20 : 507,147.06 = 220,098.04 : x
  2. Step 2: Convert to fraction form
    338,342.20/507,147.06 = 220,098.04/x
  3. Step 3: Cross multiply
    338,342.20x = 507,147.06 × 220,098.04
  4. Step 4: Simplify right side
    338,342.20x = 111,622,073,897.76
  5. Step 5: Solve for x
    x = 111,622,073,897.76/338,342.20
  6. Step 6: Final answer
    x = 329,908.81

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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.