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Finding the Fourth Proportional to 808,548.30, 1,212,822.45 and 792,801.90

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Solution

The fourth proportional to 808,548.30, 1,212,822.45 and 792,801.90 is: 1,189,202.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,548.30 : 1,212,822.45 = 792,801.90 : x
  2. Step 2: Convert to fraction form
    808,548.30/1,212,822.45 = 792,801.90/x
  3. Step 3: Cross multiply
    808,548.30x = 1,212,822.45 × 792,801.90
  4. Step 4: Simplify right side
    808,548.30x = 961,527,942,722.66
  5. Step 5: Solve for x
    x = 961,527,942,722.66/808,548.30
  6. Step 6: Final answer
    x = 1,189,202.85

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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.