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Finding the Fourth Proportional to 410,880.20, 616,320.30 and 347,894.60

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Solution

The fourth proportional to 410,880.20, 616,320.30 and 347,894.60 is: 521,841.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,880.20 : 616,320.30 = 347,894.60 : x
  2. Step 2: Convert to fraction form
    410,880.20/616,320.30 = 347,894.60/x
  3. Step 3: Cross multiply
    410,880.20x = 616,320.30 × 347,894.60
  4. Step 4: Simplify right side
    410,880.20x = 214,414,504,240.38
  5. Step 5: Solve for x
    x = 214,414,504,240.38/410,880.20
  6. Step 6: Final answer
    x = 521,841.90

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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.