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Finding the Fourth Proportional to 603,321.80, 905,104.20 and 176,856.80

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Solution

The fourth proportional to 603,321.80, 905,104.20 and 176,856.80 is: 265,320.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,321.80 : 905,104.20 = 176,856.80 : x
  2. Step 2: Convert to fraction form
    603,321.80/905,104.20 = 176,856.80/x
  3. Step 3: Cross multiply
    603,321.80x = 905,104.20 × 176,856.80
  4. Step 4: Simplify right side
    603,321.80x = 160,073,832,478.56
  5. Step 5: Solve for x
    x = 160,073,832,478.56/603,321.80
  6. Step 6: Final answer
    x = 265,320.82

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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.