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Finding the Fourth Proportional to 354,679.92, 531,720.48 and 165,042.24

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Solution

The fourth proportional to 354,679.92, 531,720.48 and 165,042.24 is: 247,424.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,679.92 : 531,720.48 = 165,042.24 : x
  2. Step 2: Convert to fraction form
    354,679.92/531,720.48 = 165,042.24/x
  3. Step 3: Cross multiply
    354,679.92x = 531,720.48 × 165,042.24
  4. Step 4: Simplify right side
    354,679.92x = 87,756,339,073.08
  5. Step 5: Solve for x
    x = 87,756,339,073.08/354,679.92
  6. Step 6: Final answer
    x = 247,424.04

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1.5x scale

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.