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Finding the Fourth Proportional to 312,449.27, 468,674.59 and 112,910.58

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Solution

The fourth proportional to 312,449.27, 468,674.59 and 112,910.58 is: 169,366.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,449.27 : 468,674.59 = 112,910.58 : x
  2. Step 2: Convert to fraction form
    312,449.27/468,674.59 = 112,910.58/x
  3. Step 3: Cross multiply
    312,449.27x = 468,674.59 × 112,910.58
  4. Step 4: Simplify right side
    312,449.27x = 52,918,319,788.16
  5. Step 5: Solve for x
    x = 52,918,319,788.16/312,449.27
  6. Step 6: Final answer
    x = 169,366.12

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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.