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Finding the Fourth Proportional to 579,627.80, 869,441.70 and 534,008.60

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Solution

The fourth proportional to 579,627.80, 869,441.70 and 534,008.60 is: 801,012.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,627.80 : 869,441.70 = 534,008.60 : x
  2. Step 2: Convert to fraction form
    579,627.80/869,441.70 = 534,008.60/x
  3. Step 3: Cross multiply
    579,627.80x = 869,441.70 × 534,008.60
  4. Step 4: Simplify right side
    579,627.80x = 464,289,344,998.62
  5. Step 5: Solve for x
    x = 464,289,344,998.62/579,627.80
  6. Step 6: Final answer
    x = 801,012.90

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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.