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Finding the Fourth Proportional to 551,915.45, 827,180.63 and 236,000.87

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Solution

The fourth proportional to 551,915.45, 827,180.63 and 236,000.87 is: 353,705.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,915.45 : 827,180.63 = 236,000.87 : x
  2. Step 2: Convert to fraction form
    551,915.45/827,180.63 = 236,000.87/x
  3. Step 3: Cross multiply
    551,915.45x = 827,180.63 × 236,000.87
  4. Step 4: Simplify right side
    551,915.45x = 195,215,347,664.13
  5. Step 5: Solve for x
    x = 195,215,347,664.13/551,915.45
  6. Step 6: Final answer
    x = 353,705.17

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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.