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Finding the Fourth Proportional to 322,440.60, 482,923.29 and 154,079.28

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Solution

The fourth proportional to 322,440.60, 482,923.29 and 154,079.28 is: 230,766.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,440.60 : 482,923.29 = 154,079.28 : x
  2. Step 2: Convert to fraction form
    322,440.60/482,923.29 = 154,079.28/x
  3. Step 3: Cross multiply
    322,440.60x = 482,923.29 × 154,079.28
  4. Step 4: Simplify right side
    322,440.60x = 74,408,472,818.43
  5. Step 5: Solve for x
    x = 74,408,472,818.43/322,440.60
  6. Step 6: Final answer
    x = 230,766.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.