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Finding the Fourth Proportional to 355,035.60, 532,553.40 and 275,720.40

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Solution

The fourth proportional to 355,035.60, 532,553.40 and 275,720.40 is: 413,580.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,035.60 : 532,553.40 = 275,720.40 : x
  2. Step 2: Convert to fraction form
    355,035.60/532,553.40 = 275,720.40/x
  3. Step 3: Cross multiply
    355,035.60x = 532,553.40 × 275,720.40
  4. Step 4: Simplify right side
    355,035.60x = 146,835,836,469.36
  5. Step 5: Solve for x
    x = 146,835,836,469.36/355,035.60
  6. Step 6: Final answer
    x = 413,580.60

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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.