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Finding the Fourth Proportional to 603,321.30, 905,103.45 and 176,856.30

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Solution

The fourth proportional to 603,321.30, 905,103.45 and 176,856.30 is: 265,320.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,321.30 : 905,103.45 = 176,856.30 : x
  2. Step 2: Convert to fraction form
    603,321.30/905,103.45 = 176,856.30/x
  3. Step 3: Cross multiply
    603,321.30x = 905,103.45 × 176,856.30
  4. Step 4: Simplify right side
    603,321.30x = 160,073,247,284.24
  5. Step 5: Solve for x
    x = 160,073,247,284.24/603,321.30
  6. Step 6: Final answer
    x = 265,320.07

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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.