Home / 322,309.20-482,799.49-188,784.64

Finding the Fourth Proportional to 322,309.20, 482,799.49 and 188,784.64

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Solution

The fourth proportional to 322,309.20, 482,799.49 and 188,784.64 is: 282,787.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,309.20 : 482,799.49 = 188,784.64 : x
  2. Step 2: Convert to fraction form
    322,309.20/482,799.49 = 188,784.64/x
  3. Step 3: Cross multiply
    322,309.20x = 482,799.49 × 188,784.64
  4. Step 4: Simplify right side
    322,309.20x = 91,145,127,911.83
  5. Step 5: Solve for x
    x = 91,145,127,911.83/322,309.20
  6. Step 6: Final answer
    x = 282,787.86

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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.