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Finding the Fourth Proportional to 1,945,603.81, 2,684,959.80 and 1,074,497.26

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Solution

The fourth proportional to 1,945,603.81, 2,684,959.80 and 1,074,497.26 is: 1,482,820.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945,603.81 : 2,684,959.80 = 1,074,497.26 : x
  2. Step 2: Convert to fraction form
    1,945,603.81/2,684,959.80 = 1,074,497.26/x
  3. Step 3: Cross multiply
    1,945,603.81x = 2,684,959.80 × 1,074,497.26
  4. Step 4: Simplify right side
    1,945,603.81x = 2,884,981,948,310.15
  5. Step 5: Solve for x
    x = 2,884,981,948,310.15/1,945,603.81
  6. Step 6: Final answer
    x = 1,482,820.88

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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.