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Finding the Fourth Proportional to 357,517.90, 536,408.21 and 336,391.48

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Solution

The fourth proportional to 357,517.90, 536,408.21 and 336,391.48 is: 504,710.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,517.90 : 536,408.21 = 336,391.48 : x
  2. Step 2: Convert to fraction form
    357,517.90/536,408.21 = 336,391.48/x
  3. Step 3: Cross multiply
    357,517.90x = 536,408.21 × 336,391.48
  4. Step 4: Simplify right side
    357,517.90x = 180,443,151,646.05
  5. Step 5: Solve for x
    x = 180,443,151,646.05/357,517.90
  6. Step 6: Final answer
    x = 504,710.82

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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.