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Finding the Fourth Proportional to 322,879.60, 445,523.51 and 186,886.94

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Solution

The fourth proportional to 322,879.60, 445,523.51 and 186,886.94 is: 257,874.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,879.60 : 445,523.51 = 186,886.94 : x
  2. Step 2: Convert to fraction form
    322,879.60/445,523.51 = 186,886.94/x
  3. Step 3: Cross multiply
    322,879.60x = 445,523.51 × 186,886.94
  4. Step 4: Simplify right side
    322,879.60x = 83,262,524,547.52
  5. Step 5: Solve for x
    x = 83,262,524,547.52/322,879.60
  6. Step 6: Final answer
    x = 257,874.84

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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.