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Finding the Fourth Proportional to 453,530.40, 680,295.60 and 154,348.80

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Solution

The fourth proportional to 453,530.40, 680,295.60 and 154,348.80 is: 231,523.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,530.40 : 680,295.60 = 154,348.80 : x
  2. Step 2: Convert to fraction form
    453,530.40/680,295.60 = 154,348.80/x
  3. Step 3: Cross multiply
    453,530.40x = 680,295.60 × 154,348.80
  4. Step 4: Simplify right side
    453,530.40x = 105,002,809,505.28
  5. Step 5: Solve for x
    x = 105,002,809,505.28/453,530.40
  6. Step 6: Final answer
    x = 231,523.20

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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.