Home / 320,686.02-481,056.48-84,028.68

Finding the Fourth Proportional to 320,686.02, 481,056.48 and 84,028.68

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Solution

The fourth proportional to 320,686.02, 481,056.48 and 84,028.68 is: 126,050.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,686.02 : 481,056.48 = 84,028.68 : x
  2. Step 2: Convert to fraction form
    320,686.02/481,056.48 = 84,028.68/x
  3. Step 3: Cross multiply
    320,686.02x = 481,056.48 × 84,028.68
  4. Step 4: Simplify right side
    320,686.02x = 40,422,541,019.85
  5. Step 5: Solve for x
    x = 40,422,541,019.85/320,686.02
  6. Step 6: Final answer
    x = 126,050.21

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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.