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Finding the Fourth Proportional to 416,000.40, 624,000.60 and 205,594.80

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Solution

The fourth proportional to 416,000.40, 624,000.60 and 205,594.80 is: 308,392.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,000.40 : 624,000.60 = 205,594.80 : x
  2. Step 2: Convert to fraction form
    416,000.40/624,000.60 = 205,594.80/x
  3. Step 3: Cross multiply
    416,000.40x = 624,000.60 × 205,594.80
  4. Step 4: Simplify right side
    416,000.40x = 128,291,278,556.88
  5. Step 5: Solve for x
    x = 128,291,278,556.88/416,000.40
  6. Step 6: Final answer
    x = 308,392.20

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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.