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Finding the Fourth Proportional to 439,107.39, 605,960.33 and 248,116.68

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Solution

The fourth proportional to 439,107.39, 605,960.33 and 248,116.68 is: 342,396.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,107.39 : 605,960.33 = 248,116.68 : x
  2. Step 2: Convert to fraction form
    439,107.39/605,960.33 = 248,116.68/x
  3. Step 3: Cross multiply
    439,107.39x = 605,960.33 × 248,116.68
  4. Step 4: Simplify right side
    439,107.39x = 150,348,864,050.72
  5. Step 5: Solve for x
    x = 150,348,864,050.72/439,107.39
  6. Step 6: Final answer
    x = 342,396.57

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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.