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Finding the Fourth Proportional to 365,487.40, 548,231.10 and 351,490.60

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Solution

The fourth proportional to 365,487.40, 548,231.10 and 351,490.60 is: 527,235.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,487.40 : 548,231.10 = 351,490.60 : x
  2. Step 2: Convert to fraction form
    365,487.40/548,231.10 = 351,490.60/x
  3. Step 3: Cross multiply
    365,487.40x = 548,231.10 × 351,490.60
  4. Step 4: Simplify right side
    365,487.40x = 192,698,078,277.66
  5. Step 5: Solve for x
    x = 192,698,078,277.66/365,487.40
  6. Step 6: Final answer
    x = 527,235.90

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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.