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Finding the Fourth Proportional to 573,917.40, 861,029.70 and 512,016.60

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Solution

The fourth proportional to 573,917.40, 861,029.70 and 512,016.60 is: 768,161.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,917.40 : 861,029.70 = 512,016.60 : x
  2. Step 2: Convert to fraction form
    573,917.40/861,029.70 = 512,016.60/x
  3. Step 3: Cross multiply
    573,917.40x = 861,029.70 × 512,016.60
  4. Step 4: Simplify right side
    573,917.40x = 440,861,499,493.02
  5. Step 5: Solve for x
    x = 440,861,499,493.02/573,917.40
  6. Step 6: Final answer
    x = 768,161.93

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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.