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Finding the Fourth Proportional to 599,780.62, 899,818.53 and 422,633.62

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Solution

The fourth proportional to 599,780.62, 899,818.53 and 422,633.62 is: 634,054.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,780.62 : 899,818.53 = 422,633.62 : x
  2. Step 2: Convert to fraction form
    599,780.62/899,818.53 = 422,633.62/x
  3. Step 3: Cross multiply
    599,780.62x = 899,818.53 × 422,633.62
  4. Step 4: Simplify right side
    599,780.62x = 380,293,560,563.81
  5. Step 5: Solve for x
    x = 380,293,560,563.81/599,780.62
  6. Step 6: Final answer
    x = 634,054.43

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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.