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Finding the Fourth Proportional to 404,711.60, 607,067.40 and 218,087.60

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Solution

The fourth proportional to 404,711.60, 607,067.40 and 218,087.60 is: 327,131.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,711.60 : 607,067.40 = 218,087.60 : x
  2. Step 2: Convert to fraction form
    404,711.60/607,067.40 = 218,087.60/x
  3. Step 3: Cross multiply
    404,711.60x = 607,067.40 × 218,087.60
  4. Step 4: Simplify right side
    404,711.60x = 132,393,872,304.24
  5. Step 5: Solve for x
    x = 132,393,872,304.24/404,711.60
  6. Step 6: Final answer
    x = 327,131.40

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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.