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Finding the Fourth Proportional to 534,781.40, 802,172.10 and 366,819.80

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Solution

The fourth proportional to 534,781.40, 802,172.10 and 366,819.80 is: 550,229.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,781.40 : 802,172.10 = 366,819.80 : x
  2. Step 2: Convert to fraction form
    534,781.40/802,172.10 = 366,819.80/x
  3. Step 3: Cross multiply
    534,781.40x = 802,172.10 × 366,819.80
  4. Step 4: Simplify right side
    534,781.40x = 294,252,609,287.58
  5. Step 5: Solve for x
    x = 294,252,609,287.58/534,781.40
  6. Step 6: Final answer
    x = 550,229.70

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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.