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Finding the Fourth Proportional to 428,189.92, 590,893.94 and 237,204.88

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Solution

The fourth proportional to 428,189.92, 590,893.94 and 237,204.88 is: 327,338.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,189.92 : 590,893.94 = 237,204.88 : x
  2. Step 2: Convert to fraction form
    428,189.92/590,893.94 = 237,204.88/x
  3. Step 3: Cross multiply
    428,189.92x = 590,893.94 × 237,204.88
  4. Step 4: Simplify right side
    428,189.92x = 140,162,925,246.21
  5. Step 5: Solve for x
    x = 140,162,925,246.21/428,189.92
  6. Step 6: Final answer
    x = 327,338.22

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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.