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Finding the Fourth Proportional to 519,298.73, 778,870.17 and 164,266.61

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Solution

The fourth proportional to 519,298.73, 778,870.17 and 164,266.61 is: 246,375.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,298.73 : 778,870.17 = 164,266.61 : x
  2. Step 2: Convert to fraction form
    519,298.73/778,870.17 = 164,266.61/x
  3. Step 3: Cross multiply
    519,298.73x = 778,870.17 × 164,266.61
  4. Step 4: Simplify right side
    519,298.73x = 127,942,362,456.02
  5. Step 5: Solve for x
    x = 127,942,362,456.02/519,298.73
  6. Step 6: Final answer
    x = 246,375.27

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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.