Home / 823,208.88-1,234,813.32-542,660.52

Finding the Fourth Proportional to 823,208.88, 1,234,813.32 and 542,660.52

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Solution

The fourth proportional to 823,208.88, 1,234,813.32 and 542,660.52 is: 813,990.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,208.88 : 1,234,813.32 = 542,660.52 : x
  2. Step 2: Convert to fraction form
    823,208.88/1,234,813.32 = 542,660.52/x
  3. Step 3: Cross multiply
    823,208.88x = 1,234,813.32 × 542,660.52
  4. Step 4: Simplify right side
    823,208.88x = 670,084,438,334.13
  5. Step 5: Solve for x
    x = 670,084,438,334.13/823,208.88
  6. Step 6: Final answer
    x = 813,990.78

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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.