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Finding the Fourth Proportional to 325,856.70, 488,785.05 and 302,237.10

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Solution

The fourth proportional to 325,856.70, 488,785.05 and 302,237.10 is: 453,355.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,856.70 : 488,785.05 = 302,237.10 : x
  2. Step 2: Convert to fraction form
    325,856.70/488,785.05 = 302,237.10/x
  3. Step 3: Cross multiply
    325,856.70x = 488,785.05 × 302,237.10
  4. Step 4: Simplify right side
    325,856.70x = 147,728,976,035.36
  5. Step 5: Solve for x
    x = 147,728,976,035.36/325,856.70
  6. Step 6: Final answer
    x = 453,355.65

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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.