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Finding the Fourth Proportional to 523,910.25, 722,996.15 and 285,446.25

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Solution

The fourth proportional to 523,910.25, 722,996.15 and 285,446.25 is: 393,915.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,910.25 : 722,996.15 = 285,446.25 : x
  2. Step 2: Convert to fraction form
    523,910.25/722,996.15 = 285,446.25/x
  3. Step 3: Cross multiply
    523,910.25x = 722,996.15 × 285,446.25
  4. Step 4: Simplify right side
    523,910.25x = 206,376,538,354.71
  5. Step 5: Solve for x
    x = 206,376,538,354.71/523,910.25
  6. Step 6: Final answer
    x = 393,915.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.