Home / 482,736.45-724,339.86-198,512.40

Finding the Fourth Proportional to 482,736.45, 724,339.86 and 198,512.40

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Solution

The fourth proportional to 482,736.45, 724,339.86 and 198,512.40 is: 297,865.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,736.45 : 724,339.86 = 198,512.40 : x
  2. Step 2: Convert to fraction form
    482,736.45/724,339.86 = 198,512.40/x
  3. Step 3: Cross multiply
    482,736.45x = 724,339.86 × 198,512.40
  4. Step 4: Simplify right side
    482,736.45x = 143,790,444,024.26
  5. Step 5: Solve for x
    x = 143,790,444,024.26/482,736.45
  6. Step 6: Final answer
    x = 297,865.31

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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.