Home / 656,404.20-984,606.30-213,172.20

Finding the Fourth Proportional to 656,404.20, 984,606.30 and 213,172.20

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Solution

The fourth proportional to 656,404.20, 984,606.30 and 213,172.20 is: 319,758.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,404.20 : 984,606.30 = 213,172.20 : x
  2. Step 2: Convert to fraction form
    656,404.20/984,606.30 = 213,172.20/x
  3. Step 3: Cross multiply
    656,404.20x = 984,606.30 × 213,172.20
  4. Step 4: Simplify right side
    656,404.20x = 209,890,691,104.86
  5. Step 5: Solve for x
    x = 209,890,691,104.86/656,404.20
  6. Step 6: Final answer
    x = 319,758.30

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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.