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Finding the Fourth Proportional to 260,060.80, 389,653.80 and 222,444.40

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Solution

The fourth proportional to 260,060.80, 389,653.80 and 222,444.40 is: 333,292.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,060.80 : 389,653.80 = 222,444.40 : x
  2. Step 2: Convert to fraction form
    260,060.80/389,653.80 = 222,444.40/x
  3. Step 3: Cross multiply
    260,060.80x = 389,653.80 × 222,444.40
  4. Step 4: Simplify right side
    260,060.80x = 86,676,305,748.72
  5. Step 5: Solve for x
    x = 86,676,305,748.72/260,060.80
  6. Step 6: Final answer
    x = 333,292.47

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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.