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Finding the Fourth Proportional to 256,795.92, 354,318.30 and 154,794.24

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Solution

The fourth proportional to 256,795.92, 354,318.30 and 154,794.24 is: 213,579.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,795.92 : 354,318.30 = 154,794.24 : x
  2. Step 2: Convert to fraction form
    256,795.92/354,318.30 = 154,794.24/x
  3. Step 3: Cross multiply
    256,795.92x = 354,318.30 × 154,794.24
  4. Step 4: Simplify right side
    256,795.92x = 54,846,431,966.59
  5. Step 5: Solve for x
    x = 54,846,431,966.59/256,795.92
  6. Step 6: Final answer
    x = 213,579.84

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1.5x scale

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.