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Finding the Fourth Proportional to 572,537.20, 858,805.80 and 543,012.70

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Solution

The fourth proportional to 572,537.20, 858,805.80 and 543,012.70 is: 814,519.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,537.20 : 858,805.80 = 543,012.70 : x
  2. Step 2: Convert to fraction form
    572,537.20/858,805.80 = 543,012.70/x
  3. Step 3: Cross multiply
    572,537.20x = 858,805.80 × 543,012.70
  4. Step 4: Simplify right side
    572,537.20x = 466,342,456,233.66
  5. Step 5: Solve for x
    x = 466,342,456,233.66/572,537.20
  6. Step 6: Final answer
    x = 814,519.05

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Double scale
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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.