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Finding the Fourth Proportional to 341,391.96, 512,047.56 and 214,657.92

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Solution

The fourth proportional to 341,391.96, 512,047.56 and 214,657.92 is: 321,961.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,391.96 : 512,047.56 = 214,657.92 : x
  2. Step 2: Convert to fraction form
    341,391.96/512,047.56 = 214,657.92/x
  3. Step 3: Cross multiply
    341,391.96x = 512,047.56 × 214,657.92
  4. Step 4: Simplify right side
    341,391.96x = 109,915,064,170.68
  5. Step 5: Solve for x
    x = 109,915,064,170.68/341,391.96
  6. Step 6: Final answer
    x = 321,961.49

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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.