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Finding the Fourth Proportional to 543,714.68, 815,387.34 and 206,674.22

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Solution

The fourth proportional to 543,714.68, 815,387.34 and 206,674.22 is: 309,941.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,714.68 : 815,387.34 = 206,674.22 : x
  2. Step 2: Convert to fraction form
    543,714.68/815,387.34 = 206,674.22/x
  3. Step 3: Cross multiply
    543,714.68x = 815,387.34 × 206,674.22
  4. Step 4: Simplify right side
    543,714.68x = 168,519,542,492.38
  5. Step 5: Solve for x
    x = 168,519,542,492.38/543,714.68
  6. Step 6: Final answer
    x = 309,941.13

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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.