Home / 1,338,515.10-2,009,327.85-806,636.70

Finding the Fourth Proportional to 1,338,515.10, 2,009,327.85 and 806,636.70

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Solution

The fourth proportional to 1,338,515.10, 2,009,327.85 and 806,636.70 is: 1,210,892.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,515.10 : 2,009,327.85 = 806,636.70 : x
  2. Step 2: Convert to fraction form
    1,338,515.10/2,009,327.85 = 806,636.70/x
  3. Step 3: Cross multiply
    1,338,515.10x = 2,009,327.85 × 806,636.70
  4. Step 4: Simplify right side
    1,338,515.10x = 1,620,797,586,142.10
  5. Step 5: Solve for x
    x = 1,620,797,586,142.10/1,338,515.10
  6. Step 6: Final answer
    x = 1,210,892.27

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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.