Home / 410,117.26-615,172.20-129,634.60

Finding the Fourth Proportional to 410,117.26, 615,172.20 and 129,634.60

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Solution

The fourth proportional to 410,117.26, 615,172.20 and 129,634.60 is: 194,450.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,117.26 : 615,172.20 = 129,634.60 : x
  2. Step 2: Convert to fraction form
    410,117.26/615,172.20 = 129,634.60/x
  3. Step 3: Cross multiply
    410,117.26x = 615,172.20 × 129,634.60
  4. Step 4: Simplify right side
    410,117.26x = 79,747,602,078.12
  5. Step 5: Solve for x
    x = 79,747,602,078.12/410,117.26
  6. Step 6: Final answer
    x = 194,450.73

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1.5x scale

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.