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Finding the Fourth Proportional to 408,046.90, 612,069.42 and 108,527.56

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Solution

The fourth proportional to 408,046.90, 612,069.42 and 108,527.56 is: 162,791.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,046.90 : 612,069.42 = 108,527.56 : x
  2. Step 2: Convert to fraction form
    408,046.90/612,069.42 = 108,527.56/x
  3. Step 3: Cross multiply
    408,046.90x = 612,069.42 × 108,527.56
  4. Step 4: Simplify right side
    408,046.90x = 66,426,400,703.22
  5. Step 5: Solve for x
    x = 66,426,400,703.22/408,046.90
  6. Step 6: Final answer
    x = 162,791.09

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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.