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Finding the Fourth Proportional to 317,536.87, 438,205.85 and 174,309.97

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Solution

The fourth proportional to 317,536.87, 438,205.85 and 174,309.97 is: 240,550.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,536.87 : 438,205.85 = 174,309.97 : x
  2. Step 2: Convert to fraction form
    317,536.87/438,205.85 = 174,309.97/x
  3. Step 3: Cross multiply
    317,536.87x = 438,205.85 × 174,309.97
  4. Step 4: Simplify right side
    317,536.87x = 76,383,647,695.77
  5. Step 5: Solve for x
    x = 76,383,647,695.77/317,536.87
  6. Step 6: Final answer
    x = 240,550.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.