Home / 431,047.20-646,570.80-273,453.60

Finding the Fourth Proportional to 431,047.20, 646,570.80 and 273,453.60

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Solution

The fourth proportional to 431,047.20, 646,570.80 and 273,453.60 is: 410,180.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,047.20 : 646,570.80 = 273,453.60 : x
  2. Step 2: Convert to fraction form
    431,047.20/646,570.80 = 273,453.60/x
  3. Step 3: Cross multiply
    431,047.20x = 646,570.80 × 273,453.60
  4. Step 4: Simplify right side
    431,047.20x = 176,807,112,914.88
  5. Step 5: Solve for x
    x = 176,807,112,914.88/431,047.20
  6. Step 6: Final answer
    x = 410,180.40

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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.