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Finding the Fourth Proportional to 408,046.10, 612,069.15 and 363,722.90

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Solution

The fourth proportional to 408,046.10, 612,069.15 and 363,722.90 is: 545,584.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,046.10 : 612,069.15 = 363,722.90 : x
  2. Step 2: Convert to fraction form
    408,046.10/612,069.15 = 363,722.90/x
  3. Step 3: Cross multiply
    408,046.10x = 612,069.15 × 363,722.90
  4. Step 4: Simplify right side
    408,046.10x = 222,623,566,238.54
  5. Step 5: Solve for x
    x = 222,623,566,238.54/408,046.10
  6. Step 6: Final answer
    x = 545,584.35

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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.