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Finding the Fourth Proportional to 363,122.20, 544,683.30 and 347,764.60

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Solution

The fourth proportional to 363,122.20, 544,683.30 and 347,764.60 is: 521,646.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,122.20 : 544,683.30 = 347,764.60 : x
  2. Step 2: Convert to fraction form
    363,122.20/544,683.30 = 347,764.60/x
  3. Step 3: Cross multiply
    363,122.20x = 544,683.30 × 347,764.60
  4. Step 4: Simplify right side
    363,122.20x = 189,421,569,951.18
  5. Step 5: Solve for x
    x = 189,421,569,951.18/363,122.20
  6. Step 6: Final answer
    x = 521,646.90

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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.