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Finding the Fourth Proportional to 533,042.20, 800,000.70 and 515,546.20

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Solution

The fourth proportional to 533,042.20, 800,000.70 and 515,546.20 is: 773,742.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,042.20 : 800,000.70 = 515,546.20 : x
  2. Step 2: Convert to fraction form
    533,042.20/800,000.70 = 515,546.20/x
  3. Step 3: Cross multiply
    533,042.20x = 800,000.70 × 515,546.20
  4. Step 4: Simplify right side
    533,042.20x = 412,437,320,882.34
  5. Step 5: Solve for x
    x = 412,437,320,882.34/533,042.20
  6. Step 6: Final answer
    x = 773,742.34

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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.