Home / 451,946.20-677,919.30-114,986.20

Finding the Fourth Proportional to 451,946.20, 677,919.30 and 114,986.20

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Solution

The fourth proportional to 451,946.20, 677,919.30 and 114,986.20 is: 172,479.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,946.20 : 677,919.30 = 114,986.20 : x
  2. Step 2: Convert to fraction form
    451,946.20/677,919.30 = 114,986.20/x
  3. Step 3: Cross multiply
    451,946.20x = 677,919.30 × 114,986.20
  4. Step 4: Simplify right side
    451,946.20x = 77,951,364,213.66
  5. Step 5: Solve for x
    x = 77,951,364,213.66/451,946.20
  6. Step 6: Final answer
    x = 172,479.30

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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.