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Finding the Fourth Proportional to 829,906.60, 1,242,527.10 and 806,578.60

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Solution

The fourth proportional to 829,906.60, 1,242,527.10 and 806,578.60 is: 1,207,600.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,906.60 : 1,242,527.10 = 806,578.60 : x
  2. Step 2: Convert to fraction form
    829,906.60/1,242,527.10 = 806,578.60/x
  3. Step 3: Cross multiply
    829,906.60x = 1,242,527.10 × 806,578.60
  4. Step 4: Simplify right side
    829,906.60x = 1,002,195,768,780.06
  5. Step 5: Solve for x
    x = 1,002,195,768,780.06/829,906.60
  6. Step 6: Final answer
    x = 1,207,600.67

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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.