Home / 437,519.57-656,316.41-121,976.78

Finding the Fourth Proportional to 437,519.57, 656,316.41 and 121,976.78

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Solution

The fourth proportional to 437,519.57, 656,316.41 and 121,976.78 is: 182,975.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,519.57 : 656,316.41 = 121,976.78 : x
  2. Step 2: Convert to fraction form
    437,519.57/656,316.41 = 121,976.78/x
  3. Step 3: Cross multiply
    437,519.57x = 656,316.41 × 121,976.78
  4. Step 4: Simplify right side
    437,519.57x = 80,055,362,352.96
  5. Step 5: Solve for x
    x = 80,055,362,352.96/437,519.57
  6. Step 6: Final answer
    x = 182,975.50

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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.