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Finding the Fourth Proportional to 996,984.90, 1,491,978.15 and 682,056.90

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Solution

The fourth proportional to 996,984.90, 1,491,978.15 and 682,056.90 is: 1,020,691.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,984.90 : 1,491,978.15 = 682,056.90 : x
  2. Step 2: Convert to fraction form
    996,984.90/1,491,978.15 = 682,056.90/x
  3. Step 3: Cross multiply
    996,984.90x = 1,491,978.15 × 682,056.90
  4. Step 4: Simplify right side
    996,984.90x = 1,017,613,991,856.74
  5. Step 5: Solve for x
    x = 1,017,613,991,856.74/996,984.90
  6. Step 6: Final answer
    x = 1,020,691.48

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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.