Home / 519,026.80-778,540.20-322,418.80

Finding the Fourth Proportional to 519,026.80, 778,540.20 and 322,418.80

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Solution

The fourth proportional to 519,026.80, 778,540.20 and 322,418.80 is: 483,628.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,026.80 : 778,540.20 = 322,418.80 : x
  2. Step 2: Convert to fraction form
    519,026.80/778,540.20 = 322,418.80/x
  3. Step 3: Cross multiply
    519,026.80x = 778,540.20 × 322,418.80
  4. Step 4: Simplify right side
    519,026.80x = 251,015,997,035.76
  5. Step 5: Solve for x
    x = 251,015,997,035.76/519,026.80
  6. Step 6: Final answer
    x = 483,628.20

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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.