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Finding the Fourth Proportional to 574,857.40, 862,286.10 and 569,327.80

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Solution

The fourth proportional to 574,857.40, 862,286.10 and 569,327.80 is: 853,991.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,857.40 : 862,286.10 = 569,327.80 : x
  2. Step 2: Convert to fraction form
    574,857.40/862,286.10 = 569,327.80/x
  3. Step 3: Cross multiply
    574,857.40x = 862,286.10 × 569,327.80
  4. Step 4: Simplify right side
    574,857.40x = 490,923,448,283.58
  5. Step 5: Solve for x
    x = 490,923,448,283.58/574,857.40
  6. Step 6: Final answer
    x = 853,991.70

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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.