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Finding the Fourth Proportional to 256,099.56, 384,005.34 and 176,231.40

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Solution

The fourth proportional to 256,099.56, 384,005.34 and 176,231.40 is: 264,248.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,099.56 : 384,005.34 = 176,231.40 : x
  2. Step 2: Convert to fraction form
    256,099.56/384,005.34 = 176,231.40/x
  3. Step 3: Cross multiply
    256,099.56x = 384,005.34 × 176,231.40
  4. Step 4: Simplify right side
    256,099.56x = 67,673,798,675.68
  5. Step 5: Solve for x
    x = 67,673,798,675.68/256,099.56
  6. Step 6: Final answer
    x = 264,248.01

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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.