Home / 519,083.20-777,069.60-308,612.80

Finding the Fourth Proportional to 519,083.20, 777,069.60 and 308,612.80

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Solution

The fourth proportional to 519,083.20, 777,069.60 and 308,612.80 is: 461,994.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,083.20 : 777,069.60 = 308,612.80 : x
  2. Step 2: Convert to fraction form
    519,083.20/777,069.60 = 308,612.80/x
  3. Step 3: Cross multiply
    519,083.20x = 777,069.60 × 308,612.80
  4. Step 4: Simplify right side
    519,083.20x = 239,813,625,050.88
  5. Step 5: Solve for x
    x = 239,813,625,050.88/519,083.20
  6. Step 6: Final answer
    x = 461,994.58

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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.