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Finding the Fourth Proportional to 883,693.60, 1,325,761.20 and 284,711.20

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Solution

The fourth proportional to 883,693.60, 1,325,761.20 and 284,711.20 is: 427,137.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,693.60 : 1,325,761.20 = 284,711.20 : x
  2. Step 2: Convert to fraction form
    883,693.60/1,325,761.20 = 284,711.20/x
  3. Step 3: Cross multiply
    883,693.60x = 1,325,761.20 × 284,711.20
  4. Step 4: Simplify right side
    883,693.60x = 377,459,062,165.44
  5. Step 5: Solve for x
    x = 377,459,062,165.44/883,693.60
  6. Step 6: Final answer
    x = 427,137.94

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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.