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Finding the Fourth Proportional to 260,014.80, 389,584.80 and 222,398.40

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Solution

The fourth proportional to 260,014.80, 389,584.80 and 222,398.40 is: 333,223.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,014.80 : 389,584.80 = 222,398.40 : x
  2. Step 2: Convert to fraction form
    260,014.80/389,584.80 = 222,398.40/x
  3. Step 3: Cross multiply
    260,014.80x = 389,584.80 × 222,398.40
  4. Step 4: Simplify right side
    260,014.80x = 86,643,036,184.32
  5. Step 5: Solve for x
    x = 86,643,036,184.32/260,014.80
  6. Step 6: Final answer
    x = 333,223.48

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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.