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Finding the Fourth Proportional to 492,800.68, 738,883.20 and 193,311.52

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Solution

The fourth proportional to 492,800.68, 738,883.20 and 193,311.52 is: 289,842.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,800.68 : 738,883.20 = 193,311.52 : x
  2. Step 2: Convert to fraction form
    492,800.68/738,883.20 = 193,311.52/x
  3. Step 3: Cross multiply
    492,800.68x = 738,883.20 × 193,311.52
  4. Step 4: Simplify right side
    492,800.68x = 142,834,634,494.46
  5. Step 5: Solve for x
    x = 142,834,634,494.46/492,800.68
  6. Step 6: Final answer
    x = 289,842.61

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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.