Home / 645,780.97-968,707.86-196,516.45

Finding the Fourth Proportional to 645,780.97, 968,707.86 and 196,516.45

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Solution

The fourth proportional to 645,780.97, 968,707.86 and 196,516.45 is: 294,785.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,780.97 : 968,707.86 = 196,516.45 : x
  2. Step 2: Convert to fraction form
    645,780.97/968,707.86 = 196,516.45/x
  3. Step 3: Cross multiply
    645,780.97x = 968,707.86 × 196,516.45
  4. Step 4: Simplify right side
    645,780.97x = 190,367,029,734.30
  5. Step 5: Solve for x
    x = 190,367,029,734.30/645,780.97
  6. Step 6: Final answer
    x = 294,785.75

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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.