Home / 319,559.42-441,151.78-198,739.63

Finding the Fourth Proportional to 319,559.42, 441,151.78 and 198,739.63

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Solution

The fourth proportional to 319,559.42, 441,151.78 and 198,739.63 is: 274,360.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,559.42 : 441,151.78 = 198,739.63 : x
  2. Step 2: Convert to fraction form
    319,559.42/441,151.78 = 198,739.63/x
  3. Step 3: Cross multiply
    319,559.42x = 441,151.78 × 198,739.63
  4. Step 4: Simplify right side
    319,559.42x = 87,674,341,531.04
  5. Step 5: Solve for x
    x = 87,674,341,531.04/319,559.42
  6. Step 6: Final answer
    x = 274,360.06

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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.