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Finding the Fourth Proportional to 323,920.08, 485,669.52 and 134,328.24

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Solution

The fourth proportional to 323,920.08, 485,669.52 and 134,328.24 is: 201,405.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,920.08 : 485,669.52 = 134,328.24 : x
  2. Step 2: Convert to fraction form
    323,920.08/485,669.52 = 134,328.24/x
  3. Step 3: Cross multiply
    323,920.08x = 485,669.52 × 134,328.24
  4. Step 4: Simplify right side
    323,920.08x = 65,239,131,843.24
  5. Step 5: Solve for x
    x = 65,239,131,843.24/323,920.08
  6. Step 6: Final answer
    x = 201,405.03

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1.5x scale

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.