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Finding the Fourth Proportional to 569,231.20, 853,155.60 and 253,352.80

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Solution

The fourth proportional to 569,231.20, 853,155.60 and 253,352.80 is: 379,721.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,231.20 : 853,155.60 = 253,352.80 : x
  2. Step 2: Convert to fraction form
    569,231.20/853,155.60 = 253,352.80/x
  3. Step 3: Cross multiply
    569,231.20x = 853,155.60 × 253,352.80
  4. Step 4: Simplify right side
    569,231.20x = 216,149,360,095.68
  5. Step 5: Solve for x
    x = 216,149,360,095.68/569,231.20
  6. Step 6: Final answer
    x = 379,721.56

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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.