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Finding the Fourth Proportional to 482,321.85, 723,586.46 and 162,505.50

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Solution

The fourth proportional to 482,321.85, 723,586.46 and 162,505.50 is: 243,793.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,321.85 : 723,586.46 = 162,505.50 : x
  2. Step 2: Convert to fraction form
    482,321.85/723,586.46 = 162,505.50/x
  3. Step 3: Cross multiply
    482,321.85x = 723,586.46 × 162,505.50
  4. Step 4: Simplify right side
    482,321.85x = 117,586,778,663.00
  5. Step 5: Solve for x
    x = 117,586,778,663.00/482,321.85
  6. Step 6: Final answer
    x = 243,793.18

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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.