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Finding the Fourth Proportional to 434,634.40, 652,108.20 and 194,728.60

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Solution

The fourth proportional to 434,634.40, 652,108.20 and 194,728.60 is: 292,163.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,634.40 : 652,108.20 = 194,728.60 : x
  2. Step 2: Convert to fraction form
    434,634.40/652,108.20 = 194,728.60/x
  3. Step 3: Cross multiply
    434,634.40x = 652,108.20 × 194,728.60
  4. Step 4: Simplify right side
    434,634.40x = 126,984,116,834.52
  5. Step 5: Solve for x
    x = 126,984,116,834.52/434,634.40
  6. Step 6: Final answer
    x = 292,163.06

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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.