Home / 1,683,116.40-2,322,719.12-919,192.44

Finding the Fourth Proportional to 1,683,116.40, 2,322,719.12 and 919,192.44

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Solution

The fourth proportional to 1,683,116.40, 2,322,719.12 and 919,192.44 is: 1,268,495.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,683,116.40 : 2,322,719.12 = 919,192.44 : x
  2. Step 2: Convert to fraction form
    1,683,116.40/2,322,719.12 = 919,192.44/x
  3. Step 3: Cross multiply
    1,683,116.40x = 2,322,719.12 × 919,192.44
  4. Step 4: Simplify right side
    1,683,116.40x = 2,135,025,855,347.45
  5. Step 5: Solve for x
    x = 2,135,025,855,347.45/1,683,116.40
  6. Step 6: Final answer
    x = 1,268,495.66

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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.