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Finding the Fourth Proportional to 256,008.14, 384,344.86 and 196,885.70

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Solution

The fourth proportional to 256,008.14, 384,344.86 and 196,885.70 is: 295,584.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,008.14 : 384,344.86 = 196,885.70 : x
  2. Step 2: Convert to fraction form
    256,008.14/384,344.86 = 196,885.70/x
  3. Step 3: Cross multiply
    256,008.14x = 384,344.86 × 196,885.70
  4. Step 4: Simplify right side
    256,008.14x = 75,672,006,802.50
  5. Step 5: Solve for x
    x = 75,672,006,802.50/256,008.14
  6. Step 6: Final answer
    x = 295,584.38

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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.