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Finding the Fourth Proportional to 394,858.53, 544,904.19 and 222,776.25

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Solution

The fourth proportional to 394,858.53, 544,904.19 and 222,776.25 is: 307,430.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,858.53 : 544,904.19 = 222,776.25 : x
  2. Step 2: Convert to fraction form
    394,858.53/544,904.19 = 222,776.25/x
  3. Step 3: Cross multiply
    394,858.53x = 544,904.19 × 222,776.25
  4. Step 4: Simplify right side
    394,858.53x = 121,391,712,057.49
  5. Step 5: Solve for x
    x = 121,391,712,057.49/394,858.53
  6. Step 6: Final answer
    x = 307,430.90

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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.