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Finding the Fourth Proportional to 322,718.58, 445,348.53 and 179,471.70

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Solution

The fourth proportional to 322,718.58, 445,348.53 and 179,471.70 is: 247,669.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,718.58 : 445,348.53 = 179,471.70 : x
  2. Step 2: Convert to fraction form
    322,718.58/445,348.53 = 179,471.70/x
  3. Step 3: Cross multiply
    322,718.58x = 445,348.53 × 179,471.70
  4. Step 4: Simplify right side
    322,718.58x = 79,927,457,771.60
  5. Step 5: Solve for x
    x = 79,927,457,771.60/322,718.58
  6. Step 6: Final answer
    x = 247,669.22

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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.