Home / 827,234.20-1,240,851.30-448,336.45

Finding the Fourth Proportional to 827,234.20, 1,240,851.30 and 448,336.45

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Solution

The fourth proportional to 827,234.20, 1,240,851.30 and 448,336.45 is: 672,504.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,234.20 : 1,240,851.30 = 448,336.45 : x
  2. Step 2: Convert to fraction form
    827,234.20/1,240,851.30 = 448,336.45/x
  3. Step 3: Cross multiply
    827,234.20x = 1,240,851.30 × 448,336.45
  4. Step 4: Simplify right side
    827,234.20x = 556,318,866,819.89
  5. Step 5: Solve for x
    x = 556,318,866,819.89/827,234.20
  6. Step 6: Final answer
    x = 672,504.68

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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.