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Finding the Fourth Proportional to 1,857,843, 2,787,232.86 and 528,147

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Solution

The fourth proportional to 1,857,843, 2,787,232.86 and 528,147 is: 792,353.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857,843 : 2,787,232.86 = 528,147 : x
  2. Step 2: Convert to fraction form
    1,857,843/2,787,232.86 = 528,147/x
  3. Step 3: Cross multiply
    1,857,843x = 2,787,232.86 × 528,147
  4. Step 4: Simplify right side
    1,857,843x = 1,472,068,673,310.42
  5. Step 5: Solve for x
    x = 1,472,068,673,310.42/1,857,843
  6. Step 6: Final answer
    x = 792,353.65

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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.