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Finding the Fourth Proportional to 354,774.40, 532,334.40 and 270,505.60

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Solution

The fourth proportional to 354,774.40, 532,334.40 and 270,505.60 is: 405,890.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,774.40 : 532,334.40 = 270,505.60 : x
  2. Step 2: Convert to fraction form
    354,774.40/532,334.40 = 270,505.60/x
  3. Step 3: Cross multiply
    354,774.40x = 532,334.40 × 270,505.60
  4. Step 4: Simplify right side
    354,774.40x = 143,999,436,272.64
  5. Step 5: Solve for x
    x = 143,999,436,272.64/354,774.40
  6. Step 6: Final answer
    x = 405,890.16

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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.