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Finding the Fourth Proportional to 376,811.76, 520,000.11 and 207,056.82

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Solution

The fourth proportional to 376,811.76, 520,000.11 and 207,056.82 is: 285,738.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,811.76 : 520,000.11 = 207,056.82 : x
  2. Step 2: Convert to fraction form
    376,811.76/520,000.11 = 207,056.82/x
  3. Step 3: Cross multiply
    376,811.76x = 520,000.11 × 207,056.82
  4. Step 4: Simplify right side
    376,811.76x = 107,669,569,176.25
  5. Step 5: Solve for x
    x = 107,669,569,176.25/376,811.76
  6. Step 6: Final answer
    x = 285,738.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.