Home / 312,765.27-431,605.58-185,365.23

Finding the Fourth Proportional to 312,765.27, 431,605.58 and 185,365.23

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Solution

The fourth proportional to 312,765.27, 431,605.58 and 185,365.23 is: 255,797.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,765.27 : 431,605.58 = 185,365.23 : x
  2. Step 2: Convert to fraction form
    312,765.27/431,605.58 = 185,365.23/x
  3. Step 3: Cross multiply
    312,765.27x = 431,605.58 × 185,365.23
  4. Step 4: Simplify right side
    312,765.27x = 80,004,666,679.16
  5. Step 5: Solve for x
    x = 80,004,666,679.16/312,765.27
  6. Step 6: Final answer
    x = 255,797.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.