Home / 1,278,354.01-1,917,793.43-379,715.71

Finding the Fourth Proportional to 1,278,354.01, 1,917,793.43 and 379,715.71

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Solution

The fourth proportional to 1,278,354.01, 1,917,793.43 and 379,715.71 is: 569,651.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,354.01 : 1,917,793.43 = 379,715.71 : x
  2. Step 2: Convert to fraction form
    1,278,354.01/1,917,793.43 = 379,715.71/x
  3. Step 3: Cross multiply
    1,278,354.01x = 1,917,793.43 × 379,715.71
  4. Step 4: Simplify right side
    1,278,354.01x = 728,216,293,905.79
  5. Step 5: Solve for x
    x = 728,216,293,905.79/1,278,354.01
  6. Step 6: Final answer
    x = 569,651.51

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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.