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Finding the Fourth Proportional to 400,147.34, 600,294.92 and 126,662.39

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Solution

The fourth proportional to 400,147.34, 600,294.92 and 126,662.39 is: 190,016.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,147.34 : 600,294.92 = 126,662.39 : x
  2. Step 2: Convert to fraction form
    400,147.34/600,294.92 = 126,662.39/x
  3. Step 3: Cross multiply
    400,147.34x = 600,294.92 × 126,662.39
  4. Step 4: Simplify right side
    400,147.34x = 76,034,785,637.27
  5. Step 5: Solve for x
    x = 76,034,785,637.27/400,147.34
  6. Step 6: Final answer
    x = 190,016.97

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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.