Home / 1,309,435.59-1,964,236.41-410,912.78

Finding the Fourth Proportional to 1,309,435.59, 1,964,236.41 and 410,912.78

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Solution

The fourth proportional to 1,309,435.59, 1,964,236.41 and 410,912.78 is: 616,395.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,435.59 : 1,964,236.41 = 410,912.78 : x
  2. Step 2: Convert to fraction form
    1,309,435.59/1,964,236.41 = 410,912.78/x
  3. Step 3: Cross multiply
    1,309,435.59x = 1,964,236.41 × 410,912.78
  4. Step 4: Simplify right side
    1,309,435.59x = 807,129,843,810.32
  5. Step 5: Solve for x
    x = 807,129,843,810.32/1,309,435.59
  6. Step 6: Final answer
    x = 616,395.22

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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.