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Finding the Fourth Proportional to 260,059.80, 389,652.30 and 222,443.40

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Solution

The fourth proportional to 260,059.80, 389,652.30 and 222,443.40 is: 333,290.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,059.80 : 389,652.30 = 222,443.40 : x
  2. Step 2: Convert to fraction form
    260,059.80/389,652.30 = 222,443.40/x
  3. Step 3: Cross multiply
    260,059.80x = 389,652.30 × 222,443.40
  4. Step 4: Simplify right side
    260,059.80x = 86,675,582,429.82
  5. Step 5: Solve for x
    x = 86,675,582,429.82/260,059.80
  6. Step 6: Final answer
    x = 333,290.97

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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.