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Finding the Fourth Proportional to 326,912.76, 451,127.07 and 183,678.84

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Solution

The fourth proportional to 326,912.76, 451,127.07 and 183,678.84 is: 253,469.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,912.76 : 451,127.07 = 183,678.84 : x
  2. Step 2: Convert to fraction form
    326,912.76/451,127.07 = 183,678.84/x
  3. Step 3: Cross multiply
    326,912.76x = 451,127.07 × 183,678.84
  4. Step 4: Simplify right side
    326,912.76x = 82,862,496,910.20
  5. Step 5: Solve for x
    x = 82,862,496,910.20/326,912.76
  6. Step 6: Final answer
    x = 253,469.75

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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.