Home / 823,228.30-1,234,842.45-540,704.35

Finding the Fourth Proportional to 823,228.30, 1,234,842.45 and 540,704.35

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Solution

The fourth proportional to 823,228.30, 1,234,842.45 and 540,704.35 is: 811,056.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,228.30 : 1,234,842.45 = 540,704.35 : x
  2. Step 2: Convert to fraction form
    823,228.30/1,234,842.45 = 540,704.35/x
  3. Step 3: Cross multiply
    823,228.30x = 1,234,842.45 × 540,704.35
  4. Step 4: Simplify right side
    823,228.30x = 667,684,684,279.66
  5. Step 5: Solve for x
    x = 667,684,684,279.66/823,228.30
  6. Step 6: Final answer
    x = 811,056.53

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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.