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Finding the Fourth Proportional to 260,734.80, 391,102.20 and 254,902.80

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Solution

The fourth proportional to 260,734.80, 391,102.20 and 254,902.80 is: 382,354.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,734.80 : 391,102.20 = 254,902.80 : x
  2. Step 2: Convert to fraction form
    260,734.80/391,102.20 = 254,902.80/x
  3. Step 3: Cross multiply
    260,734.80x = 391,102.20 × 254,902.80
  4. Step 4: Simplify right side
    260,734.80x = 99,693,045,866.16
  5. Step 5: Solve for x
    x = 99,693,045,866.16/260,734.80
  6. Step 6: Final answer
    x = 382,354.20

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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.