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Finding the Fourth Proportional to 569,720.20, 853,889.10 and 253,841.80

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Solution

The fourth proportional to 569,720.20, 853,889.10 and 253,841.80 is: 380,454.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,720.20 : 853,889.10 = 253,841.80 : x
  2. Step 2: Convert to fraction form
    569,720.20/853,889.10 = 253,841.80/x
  3. Step 3: Cross multiply
    569,720.20x = 853,889.10 × 253,841.80
  4. Step 4: Simplify right side
    569,720.20x = 216,752,746,144.38
  5. Step 5: Solve for x
    x = 216,752,746,144.38/569,720.20
  6. Step 6: Final answer
    x = 380,454.73

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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.