Home / 993,172.20-1,489,758.30-394,276.20

Finding the Fourth Proportional to 993,172.20, 1,489,758.30 and 394,276.20

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Solution

The fourth proportional to 993,172.20, 1,489,758.30 and 394,276.20 is: 591,414.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,172.20 : 1,489,758.30 = 394,276.20 : x
  2. Step 2: Convert to fraction form
    993,172.20/1,489,758.30 = 394,276.20/x
  3. Step 3: Cross multiply
    993,172.20x = 1,489,758.30 × 394,276.20
  4. Step 4: Simplify right side
    993,172.20x = 587,376,241,442.46
  5. Step 5: Solve for x
    x = 587,376,241,442.46/993,172.20
  6. Step 6: Final answer
    x = 591,414.30

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Double scale
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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.