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Finding the Fourth Proportional to 548,843.60, 823,265.40 and 268,907.60

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Solution

The fourth proportional to 548,843.60, 823,265.40 and 268,907.60 is: 403,361.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,843.60 : 823,265.40 = 268,907.60 : x
  2. Step 2: Convert to fraction form
    548,843.60/823,265.40 = 268,907.60/x
  3. Step 3: Cross multiply
    548,843.60x = 823,265.40 × 268,907.60
  4. Step 4: Simplify right side
    548,843.60x = 221,382,322,877.04
  5. Step 5: Solve for x
    x = 221,382,322,877.04/548,843.60
  6. Step 6: Final answer
    x = 403,361.40

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Similar ratio
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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.