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Finding the Fourth Proportional to 404,047.80, 606,727.80 and 271,515.60

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Solution

The fourth proportional to 404,047.80, 606,727.80 and 271,515.60 is: 407,714.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,047.80 : 606,727.80 = 271,515.60 : x
  2. Step 2: Convert to fraction form
    404,047.80/606,727.80 = 271,515.60/x
  3. Step 3: Cross multiply
    404,047.80x = 606,727.80 × 271,515.60
  4. Step 4: Simplify right side
    404,047.80x = 164,736,062,653.68
  5. Step 5: Solve for x
    x = 164,736,062,653.68/404,047.80
  6. Step 6: Final answer
    x = 407,714.29

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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.