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Finding the Fourth Proportional to 484,390.80, 726,586.20 and 168,773.90

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Solution

The fourth proportional to 484,390.80, 726,586.20 and 168,773.90 is: 253,160.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,390.80 : 726,586.20 = 168,773.90 : x
  2. Step 2: Convert to fraction form
    484,390.80/726,586.20 = 168,773.90/x
  3. Step 3: Cross multiply
    484,390.80x = 726,586.20 × 168,773.90
  4. Step 4: Simplify right side
    484,390.80x = 122,628,783,027.25
  5. Step 5: Solve for x
    x = 122,628,783,027.25/484,390.80
  6. Step 6: Final answer
    x = 253,160.84

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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.