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Finding the Fourth Proportional to 577,892.90, 866,842.05 and 203,915.90

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Solution

The fourth proportional to 577,892.90, 866,842.05 and 203,915.90 is: 305,874.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,892.90 : 866,842.05 = 203,915.90 : x
  2. Step 2: Convert to fraction form
    577,892.90/866,842.05 = 203,915.90/x
  3. Step 3: Cross multiply
    577,892.90x = 866,842.05 × 203,915.90
  4. Step 4: Simplify right side
    577,892.90x = 176,762,876,783.60
  5. Step 5: Solve for x
    x = 176,762,876,783.60/577,892.90
  6. Step 6: Final answer
    x = 305,874.80

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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.