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Finding the Fourth Proportional to 393,364.06, 542,928.36 and 250,096.12

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Solution

The fourth proportional to 393,364.06, 542,928.36 and 250,096.12 is: 345,187.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,364.06 : 542,928.36 = 250,096.12 : x
  2. Step 2: Convert to fraction form
    393,364.06/542,928.36 = 250,096.12/x
  3. Step 3: Cross multiply
    393,364.06x = 542,928.36 × 250,096.12
  4. Step 4: Simplify right side
    393,364.06x = 135,784,276,273.96
  5. Step 5: Solve for x
    x = 135,784,276,273.96/393,364.06
  6. Step 6: Final answer
    x = 345,187.30

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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.