Home / 661,639.24-992,470.20-188,336.80

Finding the Fourth Proportional to 661,639.24, 992,470.20 and 188,336.80

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Solution

The fourth proportional to 661,639.24, 992,470.20 and 188,336.80 is: 282,508.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,639.24 : 992,470.20 = 188,336.80 : x
  2. Step 2: Convert to fraction form
    661,639.24/992,470.20 = 188,336.80/x
  3. Step 3: Cross multiply
    661,639.24x = 992,470.20 × 188,336.80
  4. Step 4: Simplify right side
    661,639.24x = 186,918,661,563.36
  5. Step 5: Solve for x
    x = 186,918,661,563.36/661,639.24
  6. Step 6: Final answer
    x = 282,508.43

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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.