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Finding the Fourth Proportional to 492,432.08, 738,433.58 and 261,570.54

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Solution

The fourth proportional to 492,432.08, 738,433.58 and 261,570.54 is: 392,241.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,432.08 : 738,433.58 = 261,570.54 : x
  2. Step 2: Convert to fraction form
    492,432.08/738,433.58 = 261,570.54/x
  3. Step 3: Cross multiply
    492,432.08x = 738,433.58 × 261,570.54
  4. Step 4: Simplify right side
    492,432.08x = 193,152,470,274.73
  5. Step 5: Solve for x
    x = 193,152,470,274.73/492,432.08
  6. Step 6: Final answer
    x = 392,241.85

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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.