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Finding the Fourth Proportional to 519,362.76, 778,573.98 and 203,734.92

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Solution

The fourth proportional to 519,362.76, 778,573.98 and 203,734.92 is: 305,417.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,362.76 : 778,573.98 = 203,734.92 : x
  2. Step 2: Convert to fraction form
    519,362.76/778,573.98 = 203,734.92/x
  3. Step 3: Cross multiply
    519,362.76x = 778,573.98 × 203,734.92
  4. Step 4: Simplify right side
    519,362.76x = 158,622,707,529.38
  5. Step 5: Solve for x
    x = 158,622,707,529.38/519,362.76
  6. Step 6: Final answer
    x = 305,417.95

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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.