Home / 1,683,312.80-2,322,954.24-919,366.40

Finding the Fourth Proportional to 1,683,312.80, 2,322,954.24 and 919,366.40

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Solution

The fourth proportional to 1,683,312.80, 2,322,954.24 and 919,366.40 is: 1,268,716.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,683,312.80 : 2,322,954.24 = 919,366.40 : x
  2. Step 2: Convert to fraction form
    1,683,312.80/2,322,954.24 = 919,366.40/x
  3. Step 3: Cross multiply
    1,683,312.80x = 2,322,954.24 × 919,366.40
  4. Step 4: Simplify right side
    1,683,312.80x = 2,135,646,076,993.54
  5. Step 5: Solve for x
    x = 2,135,646,076,993.54/1,683,312.80
  6. Step 6: Final answer
    x = 1,268,716.12

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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.