Home / 645,903.20-968,743.02-196,515.20

Finding the Fourth Proportional to 645,903.20, 968,743.02 and 196,515.20

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Solution

The fourth proportional to 645,903.20, 968,743.02 and 196,515.20 is: 294,738.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,903.20 : 968,743.02 = 196,515.20 : x
  2. Step 2: Convert to fraction form
    645,903.20/968,743.02 = 196,515.20/x
  3. Step 3: Cross multiply
    645,903.20x = 968,743.02 × 196,515.20
  4. Step 4: Simplify right side
    645,903.20x = 190,372,728,323.90
  5. Step 5: Solve for x
    x = 190,372,728,323.90/645,903.20
  6. Step 6: Final answer
    x = 294,738.79

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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.