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Finding the Fourth Proportional to 466,446.80, 699,670.20 and 427,739.60

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Solution

The fourth proportional to 466,446.80, 699,670.20 and 427,739.60 is: 641,609.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,446.80 : 699,670.20 = 427,739.60 : x
  2. Step 2: Convert to fraction form
    466,446.80/699,670.20 = 427,739.60/x
  3. Step 3: Cross multiply
    466,446.80x = 699,670.20 × 427,739.60
  4. Step 4: Simplify right side
    466,446.80x = 299,276,651,479.92
  5. Step 5: Solve for x
    x = 299,276,651,479.92/466,446.80
  6. Step 6: Final answer
    x = 641,609.40

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Similar ratio
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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.