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Finding the Fourth Proportional to 542,622.39, 813,224.00 and 222,399.32

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Solution

The fourth proportional to 542,622.39, 813,224.00 and 222,399.32 is: 333,308.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,622.39 : 813,224.00 = 222,399.32 : x
  2. Step 2: Convert to fraction form
    542,622.39/813,224.00 = 222,399.32/x
  3. Step 3: Cross multiply
    542,622.39x = 813,224.00 × 222,399.32
  4. Step 4: Simplify right side
    542,622.39x = 180,860,465,671.94
  5. Step 5: Solve for x
    x = 180,860,465,671.94/542,622.39
  6. Step 6: Final answer
    x = 333,308.15

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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.