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Finding the Fourth Proportional to 394,892.30, 544,904.40 and 222,800.35

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Solution

The fourth proportional to 394,892.30, 544,904.40 and 222,800.35 is: 307,437.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,892.30 : 544,904.40 = 222,800.35 : x
  2. Step 2: Convert to fraction form
    394,892.30/544,904.40 = 222,800.35/x
  3. Step 3: Cross multiply
    394,892.30x = 544,904.40 × 222,800.35
  4. Step 4: Simplify right side
    394,892.30x = 121,404,888,312.02
  5. Step 5: Solve for x
    x = 121,404,888,312.02/394,892.30
  6. Step 6: Final answer
    x = 307,437.97

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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.