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Finding the Fourth Proportional to 528,895.93, 729,696.14 and 338,019.43

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Solution

The fourth proportional to 528,895.93, 729,696.14 and 338,019.43 is: 466,351.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,895.93 : 729,696.14 = 338,019.43 : x
  2. Step 2: Convert to fraction form
    528,895.93/729,696.14 = 338,019.43/x
  3. Step 3: Cross multiply
    528,895.93x = 729,696.14 × 338,019.43
  4. Step 4: Simplify right side
    528,895.93x = 246,651,469,801.66
  5. Step 5: Solve for x
    x = 246,651,469,801.66/528,895.93
  6. Step 6: Final answer
    x = 466,351.61

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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.