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Finding the Fourth Proportional to 706,520.10, 1,059,780.15 and 548,861.70

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Solution

The fourth proportional to 706,520.10, 1,059,780.15 and 548,861.70 is: 823,292.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,520.10 : 1,059,780.15 = 548,861.70 : x
  2. Step 2: Convert to fraction form
    706,520.10/1,059,780.15 = 548,861.70/x
  3. Step 3: Cross multiply
    706,520.10x = 1,059,780.15 × 548,861.70
  4. Step 4: Simplify right side
    706,520.10x = 581,672,734,755.26
  5. Step 5: Solve for x
    x = 581,672,734,755.26/706,520.10
  6. Step 6: Final answer
    x = 823,292.55

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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.