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Finding the Fourth Proportional to 353,888.25, 488,365.79 and 194,912.25

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Solution

The fourth proportional to 353,888.25, 488,365.79 and 194,912.25 is: 268,978.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,888.25 : 488,365.79 = 194,912.25 : x
  2. Step 2: Convert to fraction form
    353,888.25/488,365.79 = 194,912.25/x
  3. Step 3: Cross multiply
    353,888.25x = 488,365.79 × 194,912.25
  4. Step 4: Simplify right side
    353,888.25x = 95,188,473,977.37
  5. Step 5: Solve for x
    x = 95,188,473,977.37/353,888.25
  6. Step 6: Final answer
    x = 268,978.91

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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.