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Finding the Fourth Proportional to 442,890.38, 611,222.56 and 251,892.38

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Solution

The fourth proportional to 442,890.38, 611,222.56 and 251,892.38 is: 347,630.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,890.38 : 611,222.56 = 251,892.38 : x
  2. Step 2: Convert to fraction form
    442,890.38/611,222.56 = 251,892.38/x
  3. Step 3: Cross multiply
    442,890.38x = 611,222.56 × 251,892.38
  4. Step 4: Simplify right side
    442,890.38x = 153,962,305,348.09
  5. Step 5: Solve for x
    x = 153,962,305,348.09/442,890.38
  6. Step 6: Final answer
    x = 347,630.73

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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.