Home / 579,040.83-799,057.02-320,906.79

Finding the Fourth Proportional to 579,040.83, 799,057.02 and 320,906.79

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Solution

The fourth proportional to 579,040.83, 799,057.02 and 320,906.79 is: 442,840.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,040.83 : 799,057.02 = 320,906.79 : x
  2. Step 2: Convert to fraction form
    579,040.83/799,057.02 = 320,906.79/x
  3. Step 3: Cross multiply
    579,040.83x = 799,057.02 × 320,906.79
  4. Step 4: Simplify right side
    579,040.83x = 256,422,823,315.17
  5. Step 5: Solve for x
    x = 256,422,823,315.17/579,040.83
  6. Step 6: Final answer
    x = 442,840.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.