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Finding the Fourth Proportional to 416,630.80, 624,946.20 and 136,176.40

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Solution

The fourth proportional to 416,630.80, 624,946.20 and 136,176.40 is: 204,264.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,630.80 : 624,946.20 = 136,176.40 : x
  2. Step 2: Convert to fraction form
    416,630.80/624,946.20 = 136,176.40/x
  3. Step 3: Cross multiply
    416,630.80x = 624,946.20 × 136,176.40
  4. Step 4: Simplify right side
    416,630.80x = 85,102,923,709.68
  5. Step 5: Solve for x
    x = 85,102,923,709.68/416,630.80
  6. Step 6: Final answer
    x = 204,264.60

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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.