Home / 539,139.80-808,418.10-223,628.60

Finding the Fourth Proportional to 539,139.80, 808,418.10 and 223,628.60

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Solution

The fourth proportional to 539,139.80, 808,418.10 and 223,628.60 is: 335,321.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,139.80 : 808,418.10 = 223,628.60 : x
  2. Step 2: Convert to fraction form
    539,139.80/808,418.10 = 223,628.60/x
  3. Step 3: Cross multiply
    539,139.80x = 808,418.10 × 223,628.60
  4. Step 4: Simplify right side
    539,139.80x = 180,785,407,917.66
  5. Step 5: Solve for x
    x = 180,785,407,917.66/539,139.80
  6. Step 6: Final answer
    x = 335,321.95

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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.