Home / 519,329.20-778,884.45-219,819.55

Finding the Fourth Proportional to 519,329.20, 778,884.45 and 219,819.55

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Solution

The fourth proportional to 519,329.20, 778,884.45 and 219,819.55 is: 329,683.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,329.20 : 778,884.45 = 219,819.55 : x
  2. Step 2: Convert to fraction form
    519,329.20/778,884.45 = 219,819.55/x
  3. Step 3: Cross multiply
    519,329.20x = 778,884.45 × 219,819.55
  4. Step 4: Simplify right side
    519,329.20x = 171,214,029,301.00
  5. Step 5: Solve for x
    x = 171,214,029,301.00/519,329.20
  6. Step 6: Final answer
    x = 329,683.04

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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.