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Finding the Fourth Proportional to 656,874.40, 985,311.60 and 236,192.80

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Solution

The fourth proportional to 656,874.40, 985,311.60 and 236,192.80 is: 354,289.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,874.40 : 985,311.60 = 236,192.80 : x
  2. Step 2: Convert to fraction form
    656,874.40/985,311.60 = 236,192.80/x
  3. Step 3: Cross multiply
    656,874.40x = 985,311.60 × 236,192.80
  4. Step 4: Simplify right side
    656,874.40x = 232,723,505,676.48
  5. Step 5: Solve for x
    x = 232,723,505,676.48/656,874.40
  6. Step 6: Final answer
    x = 354,289.20

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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.