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Finding the Fourth Proportional to 1,914,894.44, 2,642,559.68 and 1,055,458.10

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Solution

The fourth proportional to 1,914,894.44, 2,642,559.68 and 1,055,458.10 is: 1,456,535.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,914,894.44 : 2,642,559.68 = 1,055,458.10 : x
  2. Step 2: Convert to fraction form
    1,914,894.44/2,642,559.68 = 1,055,458.10/x
  3. Step 3: Cross multiply
    1,914,894.44x = 2,642,559.68 × 1,055,458.10
  4. Step 4: Simplify right side
    1,914,894.44x = 2,789,111,018,989.41
  5. Step 5: Solve for x
    x = 2,789,111,018,989.41/1,914,894.44
  6. Step 6: Final answer
    x = 1,456,535.13

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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.