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Finding the Fourth Proportional to 547,892.70, 821,839.05 and 153,908.70

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Solution

The fourth proportional to 547,892.70, 821,839.05 and 153,908.70 is: 230,863.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,892.70 : 821,839.05 = 153,908.70 : x
  2. Step 2: Convert to fraction form
    547,892.70/821,839.05 = 153,908.70/x
  3. Step 3: Cross multiply
    547,892.70x = 821,839.05 × 153,908.70
  4. Step 4: Simplify right side
    547,892.70x = 126,488,179,794.74
  5. Step 5: Solve for x
    x = 126,488,179,794.74/547,892.70
  6. Step 6: Final answer
    x = 230,863.05

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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.