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Finding the Fourth Proportional to 620,858.52, 931,939.32 and 550,233

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Solution

The fourth proportional to 620,858.52, 931,939.32 and 550,233 is: 825,926.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,858.52 : 931,939.32 = 550,233 : x
  2. Step 2: Convert to fraction form
    620,858.52/931,939.32 = 550,233/x
  3. Step 3: Cross multiply
    620,858.52x = 931,939.32 × 550,233
  4. Step 4: Simplify right side
    620,858.52x = 512,783,767,861.56
  5. Step 5: Solve for x
    x = 512,783,767,861.56/620,858.52
  6. Step 6: Final answer
    x = 825,926.92

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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.