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Finding the Fourth Proportional to 366,939.70, 550,409.55 and 234,079.45

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Solution

The fourth proportional to 366,939.70, 550,409.55 and 234,079.45 is: 351,119.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,939.70 : 550,409.55 = 234,079.45 : x
  2. Step 2: Convert to fraction form
    366,939.70/550,409.55 = 234,079.45/x
  3. Step 3: Cross multiply
    366,939.70x = 550,409.55 × 234,079.45
  4. Step 4: Simplify right side
    366,939.70x = 128,839,564,738.75
  5. Step 5: Solve for x
    x = 128,839,564,738.75/366,939.70
  6. Step 6: Final answer
    x = 351,119.18

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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.