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Finding the Fourth Proportional to 462,364.41, 693,546.61 and 129,940.41

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Solution

The fourth proportional to 462,364.41, 693,546.61 and 129,940.41 is: 194,910.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,364.41 : 693,546.61 = 129,940.41 : x
  2. Step 2: Convert to fraction form
    462,364.41/693,546.61 = 129,940.41/x
  3. Step 3: Cross multiply
    462,364.41x = 693,546.61 × 129,940.41
  4. Step 4: Simplify right side
    462,364.41x = 90,119,730,532.66
  5. Step 5: Solve for x
    x = 90,119,730,532.66/462,364.41
  6. Step 6: Final answer
    x = 194,910.61

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1.5x scale

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.