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Finding the Fourth Proportional to 534,748.80, 802,123.20 and 179,644.80

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Solution

The fourth proportional to 534,748.80, 802,123.20 and 179,644.80 is: 269,467.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,748.80 : 802,123.20 = 179,644.80 : x
  2. Step 2: Convert to fraction form
    534,748.80/802,123.20 = 179,644.80/x
  3. Step 3: Cross multiply
    534,748.80x = 802,123.20 × 179,644.80
  4. Step 4: Simplify right side
    534,748.80x = 144,097,261,839.36
  5. Step 5: Solve for x
    x = 144,097,261,839.36/534,748.80
  6. Step 6: Final answer
    x = 269,467.20

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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.