Home / 685,392.60-1,028,088.66-186,756.60

Finding the Fourth Proportional to 685,392.60, 1,028,088.66 and 186,756.60

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Solution

The fourth proportional to 685,392.60, 1,028,088.66 and 186,756.60 is: 280,134.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,392.60 : 1,028,088.66 = 186,756.60 : x
  2. Step 2: Convert to fraction form
    685,392.60/1,028,088.66 = 186,756.60/x
  3. Step 3: Cross multiply
    685,392.60x = 1,028,088.66 × 186,756.60
  4. Step 4: Simplify right side
    685,392.60x = 192,002,342,640.16
  5. Step 5: Solve for x
    x = 192,002,342,640.16/685,392.60
  6. Step 6: Final answer
    x = 280,134.83

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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.