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Finding the Fourth Proportional to 439,759.50, 606,916.71 and 248,771.22

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Solution

The fourth proportional to 439,759.50, 606,916.71 and 248,771.22 is: 343,331.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,759.50 : 606,916.71 = 248,771.22 : x
  2. Step 2: Convert to fraction form
    439,759.50/606,916.71 = 248,771.22/x
  3. Step 3: Cross multiply
    439,759.50x = 606,916.71 × 248,771.22
  4. Step 4: Simplify right side
    439,759.50x = 150,983,410,385.09
  5. Step 5: Solve for x
    x = 150,983,410,385.09/439,759.50
  6. Step 6: Final answer
    x = 343,331.78

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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.