Home / 521,790.20-782,783.62-197,675.38

Finding the Fourth Proportional to 521,790.20, 782,783.62 and 197,675.38

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Solution

The fourth proportional to 521,790.20, 782,783.62 and 197,675.38 is: 296,550.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,790.20 : 782,783.62 = 197,675.38 : x
  2. Step 2: Convert to fraction form
    521,790.20/782,783.62 = 197,675.38/x
  3. Step 3: Cross multiply
    521,790.20x = 782,783.62 × 197,675.38
  4. Step 4: Simplify right side
    521,790.20x = 154,737,049,541.28
  5. Step 5: Solve for x
    x = 154,737,049,541.28/521,790.20
  6. Step 6: Final answer
    x = 296,550.32

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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.