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Finding the Fourth Proportional to 2,865,774, 3,954,768 and 1,576,586.72

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Solution

The fourth proportional to 2,865,774, 3,954,768 and 1,576,586.72 is: 2,175,689.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865,774 : 3,954,768 = 1,576,586.72 : x
  2. Step 2: Convert to fraction form
    2,865,774/3,954,768 = 1,576,586.72/x
  3. Step 3: Cross multiply
    2,865,774x = 3,954,768 × 1,576,586.72
  4. Step 4: Simplify right side
    2,865,774x = 6,235,034,709,480.96
  5. Step 5: Solve for x
    x = 6,235,034,709,480.96/2,865,774
  6. Step 6: Final answer
    x = 2,175,689.61

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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.