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Finding the Fourth Proportional to 621,917.07, 933,072.84 and 222,549

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Solution

The fourth proportional to 621,917.07, 933,072.84 and 222,549 is: 333,894.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,917.07 : 933,072.84 = 222,549 : x
  2. Step 2: Convert to fraction form
    621,917.07/933,072.84 = 222,549/x
  3. Step 3: Cross multiply
    621,917.07x = 933,072.84 × 222,549
  4. Step 4: Simplify right side
    621,917.07x = 207,654,427,469.16
  5. Step 5: Solve for x
    x = 207,654,427,469.16/621,917.07
  6. Step 6: Final answer
    x = 333,894.08

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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.