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Finding the Fourth Proportional to 655,481.36, 983,240.76 and 356,105.36

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Solution

The fourth proportional to 655,481.36, 983,240.76 and 356,105.36 is: 534,168.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,481.36 : 983,240.76 = 356,105.36 : x
  2. Step 2: Convert to fraction form
    655,481.36/983,240.76 = 356,105.36/x
  3. Step 3: Cross multiply
    655,481.36x = 983,240.76 × 356,105.36
  4. Step 4: Simplify right side
    655,481.36x = 350,137,304,806.47
  5. Step 5: Solve for x
    x = 350,137,304,806.47/655,481.36
  6. Step 6: Final answer
    x = 534,168.21

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1.5x scale

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.