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Finding the Fourth Proportional to 322,722.48, 445,350.67 and 179,479.45

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Solution

The fourth proportional to 322,722.48, 445,350.67 and 179,479.45 is: 247,678.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,722.48 : 445,350.67 = 179,479.45 : x
  2. Step 2: Convert to fraction form
    322,722.48/445,350.67 = 179,479.45/x
  3. Step 3: Cross multiply
    322,722.48x = 445,350.67 × 179,479.45
  4. Step 4: Simplify right side
    322,722.48x = 79,931,293,308.73
  5. Step 5: Solve for x
    x = 79,931,293,308.73/322,722.48
  6. Step 6: Final answer
    x = 247,678.11

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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.