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Finding the Fourth Proportional to 324,606.70, 486,910.05 and 245,874.70

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Solution

The fourth proportional to 324,606.70, 486,910.05 and 245,874.70 is: 368,812.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,606.70 : 486,910.05 = 245,874.70 : x
  2. Step 2: Convert to fraction form
    324,606.70/486,910.05 = 245,874.70/x
  3. Step 3: Cross multiply
    324,606.70x = 486,910.05 × 245,874.70
  4. Step 4: Simplify right side
    324,606.70x = 119,718,862,470.74
  5. Step 5: Solve for x
    x = 119,718,862,470.74/324,606.70
  6. Step 6: Final answer
    x = 368,812.05

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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.