Home / 1,683,367.31-2,323,046.89-919,422.70

Finding the Fourth Proportional to 1,683,367.31, 2,323,046.89 and 919,422.70

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Solution

The fourth proportional to 1,683,367.31, 2,323,046.89 and 919,422.70 is: 1,268,803.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,683,367.31 : 2,323,046.89 = 919,422.70 : x
  2. Step 2: Convert to fraction form
    1,683,367.31/2,323,046.89 = 919,422.70/x
  3. Step 3: Cross multiply
    1,683,367.31x = 2,323,046.89 × 919,422.70
  4. Step 4: Simplify right side
    1,683,367.31x = 2,135,862,039,172.06
  5. Step 5: Solve for x
    x = 2,135,862,039,172.06/1,683,367.31
  6. Step 6: Final answer
    x = 1,268,803.32

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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.