Home / 645,781.19-968,708.22-196,516.70

Finding the Fourth Proportional to 645,781.19, 968,708.22 and 196,516.70

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Solution

The fourth proportional to 645,781.19, 968,708.22 and 196,516.70 is: 294,786.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,781.19 : 968,708.22 = 196,516.70 : x
  2. Step 2: Convert to fraction form
    645,781.19/968,708.22 = 196,516.70/x
  3. Step 3: Cross multiply
    645,781.19x = 968,708.22 × 196,516.70
  4. Step 4: Simplify right side
    645,781.19x = 190,367,342,657.27
  5. Step 5: Solve for x
    x = 190,367,342,657.27/645,781.19
  6. Step 6: Final answer
    x = 294,786.14

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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.