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Finding the Fourth Proportional to 354,998.40, 532,886.40 and 222,028.80

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Solution

The fourth proportional to 354,998.40, 532,886.40 and 222,028.80 is: 333,286.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,998.40 : 532,886.40 = 222,028.80 : x
  2. Step 2: Convert to fraction form
    354,998.40/532,886.40 = 222,028.80/x
  3. Step 3: Cross multiply
    354,998.40x = 532,886.40 × 222,028.80
  4. Step 4: Simplify right side
    354,998.40x = 118,316,127,928.32
  5. Step 5: Solve for x
    x = 118,316,127,928.32/354,998.40
  6. Step 6: Final answer
    x = 333,286.37

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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.