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Finding the Fourth Proportional to 543,676.60, 815,514.90 and 543,676.60

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Solution

The fourth proportional to 543,676.60, 815,514.90 and 543,676.60 is: 815,514.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,676.60 : 815,514.90 = 543,676.60 : x
  2. Step 2: Convert to fraction form
    543,676.60/815,514.90 = 543,676.60/x
  3. Step 3: Cross multiply
    543,676.60x = 815,514.90 × 543,676.60
  4. Step 4: Simplify right side
    543,676.60x = 443,376,368,081.34
  5. Step 5: Solve for x
    x = 443,376,368,081.34/543,676.60
  6. Step 6: Final answer
    x = 815,514.90

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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.