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Finding the Fourth Proportional to 1,914,493.54, 2,642,001.54 and 1,043,328.48

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Solution

The fourth proportional to 1,914,493.54, 2,642,001.54 and 1,043,328.48 is: 1,439,793.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,914,493.54 : 2,642,001.54 = 1,043,328.48 : x
  2. Step 2: Convert to fraction form
    1,914,493.54/2,642,001.54 = 1,043,328.48/x
  3. Step 3: Cross multiply
    1,914,493.54x = 2,642,001.54 × 1,043,328.48
  4. Step 4: Simplify right side
    1,914,493.54x = 2,756,475,451,927.13
  5. Step 5: Solve for x
    x = 2,756,475,451,927.13/1,914,493.54
  6. Step 6: Final answer
    x = 1,439,793.55

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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.