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Finding the Fourth Proportional to 439,081.38, 605,885.94 and 248,057.88

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Solution

The fourth proportional to 439,081.38, 605,885.94 and 248,057.88 is: 342,293.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,081.38 : 605,885.94 = 248,057.88 : x
  2. Step 2: Convert to fraction form
    439,081.38/605,885.94 = 248,057.88/x
  3. Step 3: Cross multiply
    439,081.38x = 605,885.94 × 248,057.88
  4. Step 4: Simplify right side
    439,081.38x = 150,294,781,798.21
  5. Step 5: Solve for x
    x = 150,294,781,798.21/439,081.38
  6. Step 6: Final answer
    x = 342,293.68

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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.