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Finding the Fourth Proportional to 1,357,868.32, 1,873,917.52 and 754,256.32

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Solution

The fourth proportional to 1,357,868.32, 1,873,917.52 and 754,256.32 is: 1,040,906.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,357,868.32 : 1,873,917.52 = 754,256.32 : x
  2. Step 2: Convert to fraction form
    1,357,868.32/1,873,917.52 = 754,256.32/x
  3. Step 3: Cross multiply
    1,357,868.32x = 1,873,917.52 × 754,256.32
  4. Step 4: Simplify right side
    1,357,868.32x = 1,413,414,132,618.73
  5. Step 5: Solve for x
    x = 1,413,414,132,618.73/1,357,868.32
  6. Step 6: Final answer
    x = 1,040,906.63

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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.