Home / 1,226,766.81-1,692,856.64-682,888.61

Finding the Fourth Proportional to 1,226,766.81, 1,692,856.64 and 682,888.61

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Solution

The fourth proportional to 1,226,766.81, 1,692,856.64 and 682,888.61 is: 942,340.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,766.81 : 1,692,856.64 = 682,888.61 : x
  2. Step 2: Convert to fraction form
    1,226,766.81/1,692,856.64 = 682,888.61/x
  3. Step 3: Cross multiply
    1,226,766.81x = 1,692,856.64 × 682,888.61
  4. Step 4: Simplify right side
    1,226,766.81x = 1,156,032,517,818.87
  5. Step 5: Solve for x
    x = 1,156,032,517,818.87/1,226,766.81
  6. Step 6: Final answer
    x = 942,340.88

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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.