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Finding the Fourth Proportional to 561,512.25, 841,762.94 and 206,450.37

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Solution

The fourth proportional to 561,512.25, 841,762.94 and 206,450.37 is: 309,489.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,512.25 : 841,762.94 = 206,450.37 : x
  2. Step 2: Convert to fraction form
    561,512.25/841,762.94 = 206,450.37/x
  3. Step 3: Cross multiply
    561,512.25x = 841,762.94 × 206,450.37
  4. Step 4: Simplify right side
    561,512.25x = 173,782,269,383.04
  5. Step 5: Solve for x
    x = 173,782,269,383.04/561,512.25
  6. Step 6: Final answer
    x = 309,489.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.