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Finding the Fourth Proportional to 366,915.70, 550,373.55 and 331,486.30

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Solution

The fourth proportional to 366,915.70, 550,373.55 and 331,486.30 is: 497,229.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,915.70 : 550,373.55 = 331,486.30 : x
  2. Step 2: Convert to fraction form
    366,915.70/550,373.55 = 331,486.30/x
  3. Step 3: Cross multiply
    366,915.70x = 550,373.55 × 331,486.30
  4. Step 4: Simplify right side
    366,915.70x = 182,441,291,707.37
  5. Step 5: Solve for x
    x = 182,441,291,707.37/366,915.70
  6. Step 6: Final answer
    x = 497,229.45

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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.