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Finding the Fourth Proportional to 404,654.80, 606,982.20 and 262,937.20

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Solution

The fourth proportional to 404,654.80, 606,982.20 and 262,937.20 is: 394,405.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,654.80 : 606,982.20 = 262,937.20 : x
  2. Step 2: Convert to fraction form
    404,654.80/606,982.20 = 262,937.20/x
  3. Step 3: Cross multiply
    404,654.80x = 606,982.20 × 262,937.20
  4. Step 4: Simplify right side
    404,654.80x = 159,598,200,117.84
  5. Step 5: Solve for x
    x = 159,598,200,117.84/404,654.80
  6. Step 6: Final answer
    x = 394,405.80

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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.