Home / 1,289,610.84-1,935,910.80-691,739.76

Finding the Fourth Proportional to 1,289,610.84, 1,935,910.80 and 691,739.76

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Solution

The fourth proportional to 1,289,610.84, 1,935,910.80 and 691,739.76 is: 1,038,411.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,610.84 : 1,935,910.80 = 691,739.76 : x
  2. Step 2: Convert to fraction form
    1,289,610.84/1,935,910.80 = 691,739.76/x
  3. Step 3: Cross multiply
    1,289,610.84x = 1,935,910.80 × 691,739.76
  4. Step 4: Simplify right side
    1,289,610.84x = 1,339,146,472,173.41
  5. Step 5: Solve for x
    x = 1,339,146,472,173.41/1,289,610.84
  6. Step 6: Final answer
    x = 1,038,411.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.