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Finding the Fourth Proportional to 519,179.63, 778,851.77 and 219,662.44

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Solution

The fourth proportional to 519,179.63, 778,851.77 and 219,662.44 is: 329,528.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,179.63 : 778,851.77 = 219,662.44 : x
  2. Step 2: Convert to fraction form
    519,179.63/778,851.77 = 219,662.44/x
  3. Step 3: Cross multiply
    519,179.63x = 778,851.77 × 219,662.44
  4. Step 4: Simplify right side
    519,179.63x = 171,084,477,151.08
  5. Step 5: Solve for x
    x = 171,084,477,151.08/519,179.63
  6. Step 6: Final answer
    x = 329,528.49

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Similar ratio
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1.5x scale

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.