Home / 457,234.20-685,851.30-190,992.60

Finding the Fourth Proportional to 457,234.20, 685,851.30 and 190,992.60

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Solution

The fourth proportional to 457,234.20, 685,851.30 and 190,992.60 is: 286,488.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,234.20 : 685,851.30 = 190,992.60 : x
  2. Step 2: Convert to fraction form
    457,234.20/685,851.30 = 190,992.60/x
  3. Step 3: Cross multiply
    457,234.20x = 685,851.30 × 190,992.60
  4. Step 4: Simplify right side
    457,234.20x = 130,992,523,000.38
  5. Step 5: Solve for x
    x = 130,992,523,000.38/457,234.20
  6. Step 6: Final answer
    x = 286,488.90

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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.