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Finding the Fourth Proportional to 322,555.76, 445,142.13 and 179,318.19

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Solution

The fourth proportional to 322,555.76, 445,142.13 and 179,318.19 is: 247,467.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,555.76 : 445,142.13 = 179,318.19 : x
  2. Step 2: Convert to fraction form
    322,555.76/445,142.13 = 179,318.19/x
  3. Step 3: Cross multiply
    322,555.76x = 445,142.13 × 179,318.19
  4. Step 4: Simplify right side
    322,555.76x = 79,822,081,044.34
  5. Step 5: Solve for x
    x = 79,822,081,044.34/322,555.76
  6. Step 6: Final answer
    x = 247,467.55

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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.