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Finding the Third Proportional to 1,860,330.38 and 2,790,505.69

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Solution

The third proportional to 1,860,330.38 and 2,790,505.69 is: 4,185,773.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860,330.38 : 2,790,505.69 = 2,790,505.69 : x
  2. Step 2: Convert to fraction form
    1,860,330.38/2,790,505.69 = 2,790,505.69/x
  3. Step 3: Cross multiply
    1,860,330.38x = 2,790,505.69 × 2,790,505.69
  4. Step 4: Simplify right side
    1,860,330.38x = 7,786,921,991,969.85
  5. Step 5: Solve for x
    x = 7,786,921,991,969.85/1,860,330.38
  6. Step 6: Final answer
    x = 4,185,773.72

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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.