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Finding the Fourth Proportional to 322,879.10, 445,522.82 and 186,886.44

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Solution

The fourth proportional to 322,879.10, 445,522.82 and 186,886.44 is: 257,874.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,879.10 : 445,522.82 = 186,886.44 : x
  2. Step 2: Convert to fraction form
    322,879.10/445,522.82 = 186,886.44/x
  3. Step 3: Cross multiply
    322,879.10x = 445,522.82 × 186,886.44
  4. Step 4: Simplify right side
    322,879.10x = 83,262,172,834.13
  5. Step 5: Solve for x
    x = 83,262,172,834.13/322,879.10
  6. Step 6: Final answer
    x = 257,874.15

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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.