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Finding the Fourth Proportional to 256,996.89, 354,766.91 and 193,350.33

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Solution

The fourth proportional to 256,996.89, 354,766.91 and 193,350.33 is: 266,907.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,996.89 : 354,766.91 = 193,350.33 : x
  2. Step 2: Convert to fraction form
    256,996.89/354,766.91 = 193,350.33/x
  3. Step 3: Cross multiply
    256,996.89x = 354,766.91 × 193,350.33
  4. Step 4: Simplify right side
    256,996.89x = 68,594,298,154.83
  5. Step 5: Solve for x
    x = 68,594,298,154.83/256,996.89
  6. Step 6: Final answer
    x = 266,907.11

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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.