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Finding the Fourth Proportional to 655,263.14, 982,493.30 and 255,436.81

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Solution

The fourth proportional to 655,263.14, 982,493.30 and 255,436.81 is: 382,998.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,263.14 : 982,493.30 = 255,436.81 : x
  2. Step 2: Convert to fraction form
    655,263.14/982,493.30 = 255,436.81/x
  3. Step 3: Cross multiply
    655,263.14x = 982,493.30 × 255,436.81
  4. Step 4: Simplify right side
    655,263.14x = 250,964,952,580.73
  5. Step 5: Solve for x
    x = 250,964,952,580.73/655,263.14
  6. Step 6: Final answer
    x = 382,998.74

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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.