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Finding the Fourth Proportional to 543,514.90, 811,612.45 and 443,872.90

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Solution

The fourth proportional to 543,514.90, 811,612.45 and 443,872.90 is: 662,820.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,514.90 : 811,612.45 = 443,872.90 : x
  2. Step 2: Convert to fraction form
    543,514.90/811,612.45 = 443,872.90/x
  3. Step 3: Cross multiply
    543,514.90x = 811,612.45 × 443,872.90
  4. Step 4: Simplify right side
    543,514.90x = 360,252,769,638.24
  5. Step 5: Solve for x
    x = 360,252,769,638.24/543,514.90
  6. Step 6: Final answer
    x = 662,820.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.