Home / 1,405,858.51-1,940,093.95-761,278.73

Finding the Fourth Proportional to 1,405,858.51, 1,940,093.95 and 761,278.73

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Solution

The fourth proportional to 1,405,858.51, 1,940,093.95 and 761,278.73 is: 1,050,569.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,858.51 : 1,940,093.95 = 761,278.73 : x
  2. Step 2: Convert to fraction form
    1,405,858.51/1,940,093.95 = 761,278.73/x
  3. Step 3: Cross multiply
    1,405,858.51x = 1,940,093.95 × 761,278.73
  4. Step 4: Simplify right side
    1,405,858.51x = 1,476,952,258,336.68
  5. Step 5: Solve for x
    x = 1,476,952,258,336.68/1,405,858.51
  6. Step 6: Final answer
    x = 1,050,569.64

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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.