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Finding the Fourth Proportional to 256,328.10, 384,532.11 and 123,183.54

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Solution

The fourth proportional to 256,328.10, 384,532.11 and 123,183.54 is: 184,794.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,328.10 : 384,532.11 = 123,183.54 : x
  2. Step 2: Convert to fraction form
    256,328.10/384,532.11 = 123,183.54/x
  3. Step 3: Cross multiply
    256,328.10x = 384,532.11 × 123,183.54
  4. Step 4: Simplify right side
    256,328.10x = 47,368,026,553.47
  5. Step 5: Solve for x
    x = 47,368,026,553.47/256,328.10
  6. Step 6: Final answer
    x = 184,794.51

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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.