Home / 1,226,765.81-1,692,855.26-682,887.61

Finding the Fourth Proportional to 1,226,765.81, 1,692,855.26 and 682,887.61

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Solution

The fourth proportional to 1,226,765.81, 1,692,855.26 and 682,887.61 is: 942,339.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,765.81 : 1,692,855.26 = 682,887.61 : x
  2. Step 2: Convert to fraction form
    1,226,765.81/1,692,855.26 = 682,887.61/x
  3. Step 3: Cross multiply
    1,226,765.81x = 1,692,855.26 × 682,887.61
  4. Step 4: Simplify right side
    1,226,765.81x = 1,156,029,886,680.32
  5. Step 5: Solve for x
    x = 1,156,029,886,680.32/1,226,765.81
  6. Step 6: Final answer
    x = 942,339.51

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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.