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Finding the Fourth Proportional to 492,432.33, 738,433.96 and 261,570.79

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Solution

The fourth proportional to 492,432.33, 738,433.96 and 261,570.79 is: 392,242.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,432.33 : 738,433.96 = 261,570.79 : x
  2. Step 2: Convert to fraction form
    492,432.33/738,433.96 = 261,570.79/x
  3. Step 3: Cross multiply
    492,432.33x = 738,433.96 × 261,570.79
  4. Step 4: Simplify right side
    492,432.33x = 193,152,751,780.02
  5. Step 5: Solve for x
    x = 193,152,751,780.02/492,432.33
  6. Step 6: Final answer
    x = 392,242.22

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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.