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Finding the Fourth Proportional to 562,221.20, 843,720.60 and 404,562.80

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Solution

The fourth proportional to 562,221.20, 843,720.60 and 404,562.80 is: 607,123.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,221.20 : 843,720.60 = 404,562.80 : x
  2. Step 2: Convert to fraction form
    562,221.20/843,720.60 = 404,562.80/x
  3. Step 3: Cross multiply
    562,221.20x = 843,720.60 × 404,562.80
  4. Step 4: Simplify right side
    562,221.20x = 341,337,968,353.68
  5. Step 5: Solve for x
    x = 341,337,968,353.68/562,221.20
  6. Step 6: Final answer
    x = 607,123.97

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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.