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Finding the Fourth Proportional to 363,971.80, 545,957.70 and 238,000.60

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Solution

The fourth proportional to 363,971.80, 545,957.70 and 238,000.60 is: 357,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,971.80 : 545,957.70 = 238,000.60 : x
  2. Step 2: Convert to fraction form
    363,971.80/545,957.70 = 238,000.60/x
  3. Step 3: Cross multiply
    363,971.80x = 545,957.70 × 238,000.60
  4. Step 4: Simplify right side
    363,971.80x = 129,938,260,174.62
  5. Step 5: Solve for x
    x = 129,938,260,174.62/363,971.80
  6. Step 6: Final answer
    x = 357,000.90

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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.