Home / 823,207.88-1,234,811.82-542,659.52

Finding the Fourth Proportional to 823,207.88, 1,234,811.82 and 542,659.52

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Solution

The fourth proportional to 823,207.88, 1,234,811.82 and 542,659.52 is: 813,989.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,207.88 : 1,234,811.82 = 542,659.52 : x
  2. Step 2: Convert to fraction form
    823,207.88/1,234,811.82 = 542,659.52/x
  3. Step 3: Cross multiply
    823,207.88x = 1,234,811.82 × 542,659.52
  4. Step 4: Simplify right side
    823,207.88x = 670,082,389,531.53
  5. Step 5: Solve for x
    x = 670,082,389,531.53/823,207.88
  6. Step 6: Final answer
    x = 813,989.28

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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.