Home / 319,550.32-441,139.24-198,730.53

Finding the Fourth Proportional to 319,550.32, 441,139.24 and 198,730.53

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Solution

The fourth proportional to 319,550.32, 441,139.24 and 198,730.53 is: 274,347.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,550.32 : 441,139.24 = 198,730.53 : x
  2. Step 2: Convert to fraction form
    319,550.32/441,139.24 = 198,730.53/x
  3. Step 3: Cross multiply
    319,550.32x = 441,139.24 × 198,730.53
  4. Step 4: Simplify right side
    319,550.32x = 87,667,835,217.41
  5. Step 5: Solve for x
    x = 87,667,835,217.41/319,550.32
  6. Step 6: Final answer
    x = 274,347.51

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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.