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Finding the Fourth Proportional to 466,445.80, 699,668.70 and 427,738.60

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Solution

The fourth proportional to 466,445.80, 699,668.70 and 427,738.60 is: 641,607.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,445.80 : 699,668.70 = 427,738.60 : x
  2. Step 2: Convert to fraction form
    466,445.80/699,668.70 = 427,738.60/x
  3. Step 3: Cross multiply
    466,445.80x = 699,668.70 × 427,738.60
  4. Step 4: Simplify right side
    466,445.80x = 299,275,310,201.82
  5. Step 5: Solve for x
    x = 299,275,310,201.82/466,445.80
  6. Step 6: Final answer
    x = 641,607.90

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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.