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Finding the Fourth Proportional to 256,279.86, 353,602.53 and 222,233.94

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Solution

The fourth proportional to 256,279.86, 353,602.53 and 222,233.94 is: 306,627.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,279.86 : 353,602.53 = 222,233.94 : x
  2. Step 2: Convert to fraction form
    256,279.86/353,602.53 = 222,233.94/x
  3. Step 3: Cross multiply
    256,279.86x = 353,602.53 × 222,233.94
  4. Step 4: Simplify right side
    256,279.86x = 78,582,483,435.87
  5. Step 5: Solve for x
    x = 78,582,483,435.87/256,279.86
  6. Step 6: Final answer
    x = 306,627.62

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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.