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Finding the Fourth Proportional to 322,755.17, 483,097.57 and 172,620.05

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Solution

The fourth proportional to 322,755.17, 483,097.57 and 172,620.05 is: 258,376.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,755.17 : 483,097.57 = 172,620.05 : x
  2. Step 2: Convert to fraction form
    322,755.17/483,097.57 = 172,620.05/x
  3. Step 3: Cross multiply
    322,755.17x = 483,097.57 × 172,620.05
  4. Step 4: Simplify right side
    322,755.17x = 83,392,323,841.24
  5. Step 5: Solve for x
    x = 83,392,323,841.24/322,755.17
  6. Step 6: Final answer
    x = 258,376.42

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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.