Home / 1,644,284.10-2,269,105.45-919,131.40

Finding the Fourth Proportional to 1,644,284.10, 2,269,105.45 and 919,131.40

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Solution

The fourth proportional to 1,644,284.10, 2,269,105.45 and 919,131.40 is: 1,268,397.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,644,284.10 : 2,269,105.45 = 919,131.40 : x
  2. Step 2: Convert to fraction form
    1,644,284.10/2,269,105.45 = 919,131.40/x
  3. Step 3: Cross multiply
    1,644,284.10x = 2,269,105.45 × 919,131.40
  4. Step 4: Simplify right side
    1,644,284.10x = 2,085,606,069,544.68
  5. Step 5: Solve for x
    x = 2,085,606,069,544.68/1,644,284.10
  6. Step 6: Final answer
    x = 1,268,397.64

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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.