Home / 319,557.54-441,149.21-198,737.76

Finding the Fourth Proportional to 319,557.54, 441,149.21 and 198,737.76

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Solution

The fourth proportional to 319,557.54, 441,149.21 and 198,737.76 is: 274,357.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,557.54 : 441,149.21 = 198,737.76 : x
  2. Step 2: Convert to fraction form
    319,557.54/441,149.21 = 198,737.76/x
  3. Step 3: Cross multiply
    319,557.54x = 441,149.21 × 198,737.76
  4. Step 4: Simplify right side
    319,557.54x = 87,673,004,827.48
  5. Step 5: Solve for x
    x = 87,673,004,827.48/319,557.54
  6. Step 6: Final answer
    x = 274,357.49

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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.