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Finding the Fourth Proportional to 354,999.40, 532,887.90 and 222,029.80

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Solution

The fourth proportional to 354,999.40, 532,887.90 and 222,029.80 is: 333,287.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,999.40 : 532,887.90 = 222,029.80 : x
  2. Step 2: Convert to fraction form
    354,999.40/532,887.90 = 222,029.80/x
  3. Step 3: Cross multiply
    354,999.40x = 532,887.90 × 222,029.80
  4. Step 4: Simplify right side
    354,999.40x = 118,316,993,859.42
  5. Step 5: Solve for x
    x = 118,316,993,859.42/354,999.40
  6. Step 6: Final answer
    x = 333,287.87

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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.