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Finding the Fourth Proportional to 466,449.80, 699,674.70 and 427,742.60

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Solution

The fourth proportional to 466,449.80, 699,674.70 and 427,742.60 is: 641,613.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,449.80 : 699,674.70 = 427,742.60 : x
  2. Step 2: Convert to fraction form
    466,449.80/699,674.70 = 427,742.60/x
  3. Step 3: Cross multiply
    466,449.80x = 699,674.70 × 427,742.60
  4. Step 4: Simplify right side
    466,449.80x = 299,280,675,332.22
  5. Step 5: Solve for x
    x = 299,280,675,332.22/466,449.80
  6. Step 6: Final answer
    x = 641,613.90

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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.