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Finding the Fourth Proportional to 547,953.96, 820,602.27 and 379,000.11

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Solution

The fourth proportional to 547,953.96, 820,602.27 and 379,000.11 is: 567,581.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,953.96 : 820,602.27 = 379,000.11 : x
  2. Step 2: Convert to fraction form
    547,953.96/820,602.27 = 379,000.11/x
  3. Step 3: Cross multiply
    547,953.96x = 820,602.27 × 379,000.11
  4. Step 4: Simplify right side
    547,953.96x = 311,008,350,596.25
  5. Step 5: Solve for x
    x = 311,008,350,596.25/547,953.96
  6. Step 6: Final answer
    x = 567,581.17

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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.