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Finding the Fourth Proportional to 544,922.40, 817,383.60 and 394,456.80

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Solution

The fourth proportional to 544,922.40, 817,383.60 and 394,456.80 is: 591,685.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,922.40 : 817,383.60 = 394,456.80 : x
  2. Step 2: Convert to fraction form
    544,922.40/817,383.60 = 394,456.80/x
  3. Step 3: Cross multiply
    544,922.40x = 817,383.60 × 394,456.80
  4. Step 4: Simplify right side
    544,922.40x = 322,422,519,228.48
  5. Step 5: Solve for x
    x = 322,422,519,228.48/544,922.40
  6. Step 6: Final answer
    x = 591,685.20

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.