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Finding the Fourth Proportional to 286,859.30, 395,873.22 and 157,801.09

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Solution

The fourth proportional to 286,859.30, 395,873.22 and 157,801.09 is: 217,769.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,859.30 : 395,873.22 = 157,801.09 : x
  2. Step 2: Convert to fraction form
    286,859.30/395,873.22 = 157,801.09/x
  3. Step 3: Cross multiply
    286,859.30x = 395,873.22 × 157,801.09
  4. Step 4: Simplify right side
    286,859.30x = 62,469,223,850.16
  5. Step 5: Solve for x
    x = 62,469,223,850.16/286,859.30
  6. Step 6: Final answer
    x = 217,769.56

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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.