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Finding the Fourth Proportional to 519,200.65, 778,800.98 and 219,603.52

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Solution

The fourth proportional to 519,200.65, 778,800.98 and 219,603.52 is: 329,405.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,200.65 : 778,800.98 = 219,603.52 : x
  2. Step 2: Convert to fraction form
    519,200.65/778,800.98 = 219,603.52/x
  3. Step 3: Cross multiply
    519,200.65x = 778,800.98 × 219,603.52
  4. Step 4: Simplify right side
    519,200.65x = 171,027,436,587.45
  5. Step 5: Solve for x
    x = 171,027,436,587.45/519,200.65
  6. Step 6: Final answer
    x = 329,405.28

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Similar ratio
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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.