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Finding the Fourth Proportional to 408,445.44, 612,697.46 and 108,924.45

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Solution

The fourth proportional to 408,445.44, 612,697.46 and 108,924.45 is: 163,394.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,445.44 : 612,697.46 = 108,924.45 : x
  2. Step 2: Convert to fraction form
    408,445.44/612,697.46 = 108,924.45/x
  3. Step 3: Cross multiply
    408,445.44x = 612,697.46 × 108,924.45
  4. Step 4: Simplify right side
    408,445.44x = 66,737,733,846.90
  5. Step 5: Solve for x
    x = 66,737,733,846.90/408,445.44
  6. Step 6: Final answer
    x = 163,394.49

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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.