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Finding the Fourth Proportional to 376,811.60, 519,999.84 and 207,056.66

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Solution

The fourth proportional to 376,811.60, 519,999.84 and 207,056.66 is: 285,738.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,811.60 : 519,999.84 = 207,056.66 : x
  2. Step 2: Convert to fraction form
    376,811.60/519,999.84 = 207,056.66/x
  3. Step 3: Cross multiply
    376,811.60x = 519,999.84 × 207,056.66
  4. Step 4: Simplify right side
    376,811.60x = 107,669,427,470.94
  5. Step 5: Solve for x
    x = 107,669,427,470.94/376,811.60
  6. Step 6: Final answer
    x = 285,738.10

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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.