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Finding the Fourth Proportional to 465,736.80, 698,605.20 and 133,312.80

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Solution

The fourth proportional to 465,736.80, 698,605.20 and 133,312.80 is: 199,969.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,736.80 : 698,605.20 = 133,312.80 : x
  2. Step 2: Convert to fraction form
    465,736.80/698,605.20 = 133,312.80/x
  3. Step 3: Cross multiply
    465,736.80x = 698,605.20 × 133,312.80
  4. Step 4: Simplify right side
    465,736.80x = 93,133,015,306.56
  5. Step 5: Solve for x
    x = 93,133,015,306.56/465,736.80
  6. Step 6: Final answer
    x = 199,969.20

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Similar ratio
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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.