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Finding the Fourth Proportional to 655,598.25, 983,981.43 and 335,967.78

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Solution

The fourth proportional to 655,598.25, 983,981.43 and 335,967.78 is: 504,250.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,598.25 : 983,981.43 = 335,967.78 : x
  2. Step 2: Convert to fraction form
    655,598.25/983,981.43 = 335,967.78/x
  3. Step 3: Cross multiply
    655,598.25x = 983,981.43 × 335,967.78
  4. Step 4: Simplify right side
    655,598.25x = 330,586,056,598.33
  5. Step 5: Solve for x
    x = 330,586,056,598.33/655,598.25
  6. Step 6: Final answer
    x = 504,250.97

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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.