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Finding the Fourth Proportional to 547,728.70, 821,593.05 and 252,816.70

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Solution

The fourth proportional to 547,728.70, 821,593.05 and 252,816.70 is: 379,225.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,728.70 : 821,593.05 = 252,816.70 : x
  2. Step 2: Convert to fraction form
    547,728.70/821,593.05 = 252,816.70/x
  3. Step 3: Cross multiply
    547,728.70x = 821,593.05 × 252,816.70
  4. Step 4: Simplify right side
    547,728.70x = 207,712,443,643.94
  5. Step 5: Solve for x
    x = 207,712,443,643.94/547,728.70
  6. Step 6: Final answer
    x = 379,225.05

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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.