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Finding the Fourth Proportional to 722,193.34, 996,614.63 and 399,896.51

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Solution

The fourth proportional to 722,193.34, 996,614.63 and 399,896.51 is: 551,850.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,193.34 : 996,614.63 = 399,896.51 : x
  2. Step 2: Convert to fraction form
    722,193.34/996,614.63 = 399,896.51/x
  3. Step 3: Cross multiply
    722,193.34x = 996,614.63 × 399,896.51
  4. Step 4: Simplify right side
    722,193.34x = 398,542,712,351.94
  5. Step 5: Solve for x
    x = 398,542,712,351.94/722,193.34
  6. Step 6: Final answer
    x = 551,850.44

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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.