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Finding the Fourth Proportional to 352,130.60, 528,195.90 and 331,394.60

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Solution

The fourth proportional to 352,130.60, 528,195.90 and 331,394.60 is: 497,091.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,130.60 : 528,195.90 = 331,394.60 : x
  2. Step 2: Convert to fraction form
    352,130.60/528,195.90 = 331,394.60/x
  3. Step 3: Cross multiply
    352,130.60x = 528,195.90 × 331,394.60
  4. Step 4: Simplify right side
    352,130.60x = 175,041,269,002.14
  5. Step 5: Solve for x
    x = 175,041,269,002.14/352,130.60
  6. Step 6: Final answer
    x = 497,091.90

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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.