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Finding the Fourth Proportional to 347,122.60, 479,022.84 and 196,219.60

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Solution

The fourth proportional to 347,122.60, 479,022.84 and 196,219.60 is: 270,779.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,122.60 : 479,022.84 = 196,219.60 : x
  2. Step 2: Convert to fraction form
    347,122.60/479,022.84 = 196,219.60/x
  3. Step 3: Cross multiply
    347,122.60x = 479,022.84 × 196,219.60
  4. Step 4: Simplify right side
    347,122.60x = 93,993,670,055.66
  5. Step 5: Solve for x
    x = 93,993,670,055.66/347,122.60
  6. Step 6: Final answer
    x = 270,779.46

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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.