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Finding the Fourth Proportional to 522,090.20, 783,208.20 and 222,568.40

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Solution

The fourth proportional to 522,090.20, 783,208.20 and 222,568.40 is: 333,883.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,090.20 : 783,208.20 = 222,568.40 : x
  2. Step 2: Convert to fraction form
    522,090.20/783,208.20 = 222,568.40/x
  3. Step 3: Cross multiply
    522,090.20x = 783,208.20 × 222,568.40
  4. Step 4: Simplify right side
    522,090.20x = 174,317,395,940.88
  5. Step 5: Solve for x
    x = 174,317,395,940.88/522,090.20
  6. Step 6: Final answer
    x = 333,883.68

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1.5x scale

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.