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Finding the Fourth Proportional to 352,104.40, 528,934.20 and 338,885.20

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Solution

The fourth proportional to 352,104.40, 528,934.20 and 338,885.20 is: 509,076.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,104.40 : 528,934.20 = 338,885.20 : x
  2. Step 2: Convert to fraction form
    352,104.40/528,934.20 = 338,885.20/x
  3. Step 3: Cross multiply
    352,104.40x = 528,934.20 × 338,885.20
  4. Step 4: Simplify right side
    352,104.40x = 179,247,972,153.84
  5. Step 5: Solve for x
    x = 179,247,972,153.84/352,104.40
  6. Step 6: Final answer
    x = 509,076.21

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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.