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Finding the Fourth Proportional to 484,832.40, 727,680.60 and 284,902.80

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Solution

The fourth proportional to 484,832.40, 727,680.60 and 284,902.80 is: 427,608.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,832.40 : 727,680.60 = 284,902.80 : x
  2. Step 2: Convert to fraction form
    484,832.40/727,680.60 = 284,902.80/x
  3. Step 3: Cross multiply
    484,832.40x = 727,680.60 × 284,902.80
  4. Step 4: Simplify right side
    484,832.40x = 207,318,240,445.68
  5. Step 5: Solve for x
    x = 207,318,240,445.68/484,832.40
  6. Step 6: Final answer
    x = 427,608.06

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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.