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Finding the Fourth Proportional to 400,711.80, 601,067.70 and 163,975.80

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Solution

The fourth proportional to 400,711.80, 601,067.70 and 163,975.80 is: 245,963.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,711.80 : 601,067.70 = 163,975.80 : x
  2. Step 2: Convert to fraction form
    400,711.80/601,067.70 = 163,975.80/x
  3. Step 3: Cross multiply
    400,711.80x = 601,067.70 × 163,975.80
  4. Step 4: Simplify right side
    400,711.80x = 98,560,556,961.66
  5. Step 5: Solve for x
    x = 98,560,556,961.66/400,711.80
  6. Step 6: Final answer
    x = 245,963.70

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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.