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Finding the Fourth Proportional to 466,447.80, 699,671.70 and 427,740.60

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Solution

The fourth proportional to 466,447.80, 699,671.70 and 427,740.60 is: 641,610.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,447.80 : 699,671.70 = 427,740.60 : x
  2. Step 2: Convert to fraction form
    466,447.80/699,671.70 = 427,740.60/x
  3. Step 3: Cross multiply
    466,447.80x = 699,671.70 × 427,740.60
  4. Step 4: Simplify right side
    466,447.80x = 299,277,992,761.02
  5. Step 5: Solve for x
    x = 299,277,992,761.02/466,447.80
  6. Step 6: Final answer
    x = 641,610.90

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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.