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Finding the Fourth Proportional to 569,721.20, 853,890.60 and 253,842.80

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Solution

The fourth proportional to 569,721.20, 853,890.60 and 253,842.80 is: 380,456.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,721.20 : 853,890.60 = 253,842.80 : x
  2. Step 2: Convert to fraction form
    569,721.20/853,890.60 = 253,842.80/x
  3. Step 3: Cross multiply
    569,721.20x = 853,890.60 × 253,842.80
  4. Step 4: Simplify right side
    569,721.20x = 216,753,980,797.68
  5. Step 5: Solve for x
    x = 216,753,980,797.68/569,721.20
  6. Step 6: Final answer
    x = 380,456.23

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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.