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Finding the Fourth Proportional to 331,093.35, 456,854.32 and 208,566.68

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Solution

The fourth proportional to 331,093.35, 456,854.32 and 208,566.68 is: 287,787.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,093.35 : 456,854.32 = 208,566.68 : x
  2. Step 2: Convert to fraction form
    331,093.35/456,854.32 = 208,566.68/x
  3. Step 3: Cross multiply
    331,093.35x = 456,854.32 × 208,566.68
  4. Step 4: Simplify right side
    331,093.35x = 95,284,588,766.06
  5. Step 5: Solve for x
    x = 95,284,588,766.06/331,093.35
  6. Step 6: Final answer
    x = 287,787.69

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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.