Home / 1,415,439.93-1,953,362.39-803,649.61

Finding the Fourth Proportional to 1,415,439.93, 1,953,362.39 and 803,649.61

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Solution

The fourth proportional to 1,415,439.93, 1,953,362.39 and 803,649.61 is: 1,109,067.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415,439.93 : 1,953,362.39 = 803,649.61 : x
  2. Step 2: Convert to fraction form
    1,415,439.93/1,953,362.39 = 803,649.61/x
  3. Step 3: Cross multiply
    1,415,439.93x = 1,953,362.39 × 803,649.61
  4. Step 4: Simplify right side
    1,415,439.93x = 1,569,818,922,912.17
  5. Step 5: Solve for x
    x = 1,569,818,922,912.17/1,415,439.93
  6. Step 6: Final answer
    x = 1,109,067.85

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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.