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Finding the Fourth Proportional to 2,865,874.95, 3,954,907.26 and 1,576,687.68

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Solution

The fourth proportional to 2,865,874.95, 3,954,907.26 and 1,576,687.68 is: 2,175,828.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865,874.95 : 3,954,907.26 = 1,576,687.68 : x
  2. Step 2: Convert to fraction form
    2,865,874.95/3,954,907.26 = 1,576,687.68/x
  3. Step 3: Cross multiply
    2,865,874.95x = 3,954,907.26 × 1,576,687.68
  4. Step 4: Simplify right side
    2,865,874.95x = 6,235,653,552,384.56
  5. Step 5: Solve for x
    x = 6,235,653,552,384.56/2,865,874.95
  6. Step 6: Final answer
    x = 2,175,828.90

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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.