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Finding the Fourth Proportional to 355,702.40, 533,942.40 and 222,732.80

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Solution

The fourth proportional to 355,702.40, 533,942.40 and 222,732.80 is: 334,342.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,702.40 : 533,942.40 = 222,732.80 : x
  2. Step 2: Convert to fraction form
    355,702.40/533,942.40 = 222,732.80/x
  3. Step 3: Cross multiply
    355,702.40x = 533,942.40 × 222,732.80
  4. Step 4: Simplify right side
    355,702.40x = 118,926,485,790.72
  5. Step 5: Solve for x
    x = 118,926,485,790.72/355,702.40
  6. Step 6: Final answer
    x = 334,342.66

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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.