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Finding the Fourth Proportional to 443,992.20, 665,988.30 and 194,674.20

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Solution

The fourth proportional to 443,992.20, 665,988.30 and 194,674.20 is: 292,011.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,992.20 : 665,988.30 = 194,674.20 : x
  2. Step 2: Convert to fraction form
    443,992.20/665,988.30 = 194,674.20/x
  3. Step 3: Cross multiply
    443,992.20x = 665,988.30 × 194,674.20
  4. Step 4: Simplify right side
    443,992.20x = 129,650,739,511.86
  5. Step 5: Solve for x
    x = 129,650,739,511.86/443,992.20
  6. Step 6: Final answer
    x = 292,011.30

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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.