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Finding the Fourth Proportional to 547,579.64, 821,369.46 and 173,602.64

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Solution

The fourth proportional to 547,579.64, 821,369.46 and 173,602.64 is: 260,403.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,579.64 : 821,369.46 = 173,602.64 : x
  2. Step 2: Convert to fraction form
    547,579.64/821,369.46 = 173,602.64/x
  3. Step 3: Cross multiply
    547,579.64x = 821,369.46 × 173,602.64
  4. Step 4: Simplify right side
    547,579.64x = 142,591,906,671.37
  5. Step 5: Solve for x
    x = 142,591,906,671.37/547,579.64
  6. Step 6: Final answer
    x = 260,403.96

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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.