Home / 647,777.63-971,631.42-198,499.79

Finding the Fourth Proportional to 647,777.63, 971,631.42 and 198,499.79

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Solution

The fourth proportional to 647,777.63, 971,631.42 and 198,499.79 is: 297,738.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,777.63 : 971,631.42 = 198,499.79 : x
  2. Step 2: Convert to fraction form
    647,777.63/971,631.42 = 198,499.79/x
  3. Step 3: Cross multiply
    647,777.63x = 971,631.42 × 198,499.79
  4. Step 4: Simplify right side
    647,777.63x = 192,868,634,512.11
  5. Step 5: Solve for x
    x = 192,868,634,512.11/647,777.63
  6. Step 6: Final answer
    x = 297,738.95

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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.