Home / 854,234.20-1,281,351.30-540,083.80

Finding the Fourth Proportional to 854,234.20, 1,281,351.30 and 540,083.80

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Solution

The fourth proportional to 854,234.20, 1,281,351.30 and 540,083.80 is: 810,125.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,234.20 : 1,281,351.30 = 540,083.80 : x
  2. Step 2: Convert to fraction form
    854,234.20/1,281,351.30 = 540,083.80/x
  3. Step 3: Cross multiply
    854,234.20x = 1,281,351.30 × 540,083.80
  4. Step 4: Simplify right side
    854,234.20x = 692,037,079,238.94
  5. Step 5: Solve for x
    x = 692,037,079,238.94/854,234.20
  6. Step 6: Final answer
    x = 810,125.70

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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.