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Finding the Fourth Proportional to 578,363.67, 867,586.05 and 178,951.86

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Solution

The fourth proportional to 578,363.67, 867,586.05 and 178,951.86 is: 268,440.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,363.67 : 867,586.05 = 178,951.86 : x
  2. Step 2: Convert to fraction form
    578,363.67/867,586.05 = 178,951.86/x
  3. Step 3: Cross multiply
    578,363.67x = 867,586.05 × 178,951.86
  4. Step 4: Simplify right side
    578,363.67x = 155,256,137,357.55
  5. Step 5: Solve for x
    x = 155,256,137,357.55/578,363.67
  6. Step 6: Final answer
    x = 268,440.34

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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.